Support configuration of default compatibility matrix if matrix is not configured before configuring drivers

[ridaz-zz]

What type of PR is this?
/kind enhancement

What this PR does / why we need it:
This PR will bring in the following changes :

1. If configure drivers is called before configuring the compat configmap, warning would be displayed for the user to configure the compatibility matrix.
2. Still the user continues to configure drivers, a default compatibility matrix corresponding to the VDO version will be configured.

Which issue(s) this PR fixes:

Fixes #112

Test Report Added?:

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:
/kind TESTED

Test Report:

1. When compat-matrix is configured explicitly

i. vdoctl configure compatibility matrix

bin/vdoctl configure compatibility-matrix
✔ Web URL
Web URL https://github.com/vmware-tanzu/vsphere-kubernetes-drivers-operator/releases/download/0.1.1/compatibility.yaml
Tip: Compatibility matrix has been configured, you might want to try 'vdoctl configure drivers' to configure vsphere drivers.

kubectl describe configmaps -n vmware-system-vdo compat-matrix-config
Name:         compat-matrix-config
Namespace:    vmware-system-vdo

Data
====
auto-upgrade:
----
disabled
configured-by:
----
user
versionConfigURL:
----
https://github.com/vmware-tanzu/vsphere-kubernetes-drivers-operator/releases/download/0.1.1/compatibility.yaml

ii. vdoctl deploy

bin/vdoctl deploy --spec https://github.com/raw/ridaz/Sample-files/main/spec.yaml
Tip: now that you have deployed VDO, you might want to try 'vdoctl configure compatibility-matrix' to configure compatibility matrix

iii. vdoctl configure drivers

bin/vdoctl configure drivers
Do you want to configure CloudProvider? (Y/N) Y
Please provide the vcenter IP for configuring CloudProvider 
VC IP/ FQDN 10.187.159.221
Do you want to establish a secure connection? (Y/N) N█
Please provide the credentials for configuring CloudProvider
Username Administrator@vsphere.local
Password ********
Datacenter(s) Datacenter
Do you want to configure another vcenter for CloudProvider? (Y/N) N
Do you want to configure zones/regions for CloudProvider? (Y/N) N
You have now completed configuration of CloudProvider. We will now proceed to configure StorageProvider.
Please provide the credentials for configuring StorageProvider
Username administrator@vsphere.local
Password ********
Datacenter(s) Datacenter
Do you wish to provide custom kubelet Path? (Y/N) N
Do you wish to configure File Volumes? (Y/N) N
Thanks for configuring VDO. The drivers will now be installed.
You can check the status for drivers using `vdoctl status`

2. When compat-matrix is not configured explicitly

i. vdoctl deploy

bin/vdoctl deploy --spec https://github.com/raw/ridaz/Sample-files/main/spec.yaml
Tip: now that you have deployed VDO, you might want to try 'vdoctl configure compatibility-matrix' to configure compatibility matrix

kubectl describe configmaps -n vmware-system-vdo compat-matrix-config
Name:         compat-matrix-config
Namespace:    vmware-system-vdo

Data
====
auto-upgrade:
----
disabled
versionConfigURL:
----
https://github.com/vmware-tanzu/vsphere-kubernetes-drivers-operator/releases/download/0.1.1/compatibility.yaml

ii.vdoctl configure drivers

bin/vdoctl configure drivers
Compatibility matrix is not configured. VDO will use the default compatibility matrix. You can run 'vdoctl update compatibility-matrix' command to Compatibility matrix is not configured. VDO will use the default compatibility matrix. You can run 'vdoctl update compatibility-matrix' command to Compatibility matrix is not configured. VDO will use the default compatibility matrix. You can run 'vdoctl update compatibility-matrix' command to Compatibility matrix is not configured. VDO will use the default compatibility matrix. You can run 'vdoctl update compatibility-matrix' command to configure. Do you want to continue with default compatibility matrix? (Y/N)   N

bin/vdoctl configure drivers
Compatibility matrix is not configured. VDO will use the default compatibility matrix. You can run 'vdoctl update compatibility-matrix' command to Compatibility matrix is not configured. VDO will use the default compatibility matrix. You can run 'vdoctl update compatibility-matrix' command to Compatibility matrix is not configured. VDO will use the default compatibility matrix. You can run 'vdoctl update compatibility-matrix' command to Compatibility matrix is not configured. VDO will use the default compatibility matrix. You can run 'vdoctl update compatibility-matrix' command to Do you want to configure CloudProvider? (Y/N) Y█
Please provide the vcenter IP for configuring CloudProvider 
VC IP/ FQDN 10.187.159.221
Do you want to establish a secure connection? (Y/N) N
Please provide the credentials for configuring CloudProvider
Username administrator@vsphere.local
Password ********
Datacenter(s) Datacenter
Do you want to configure another vcenter for CloudProvider? (Y/N) N
Do you want to configure zones/regions for CloudProvider? (Y/N) N
You have now completed configuration of CloudProvider. We will now proceed to configure StorageProvider.
Please provide the credentials for configuring StorageProvider
Username administrator@vsphere.local
Password ********
Datacenter(s) Datacenter
Do you wish to provide custom kubelet Path? (Y/N) N
Do you wish to configure File Volumes? (Y/N) N
Thanks for configuring VDO. The drivers will now be installed.
You can check the status for drivers using `vdoctl status`

kubectl describe configmaps -n vmware-system-vdo compat-matrix-config
Name:         compat-matrix-config
Namespace:    vmware-system-vdo
Labels:       <none>
Annotations:  <none>

Data
====
auto-upgrade:
----
disabled
configured-by:
----
default

Special notes for your reviewer:

[codecov-commenter]

Codecov Report

Merging #118 (c016fc0) into main (1ae1fc5) will increase coverage by 0.33%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #118      +/-   ##
==========================================
+ Coverage   51.47%   51.80%   +0.33%     
==========================================
  Files           6        6              
  Lines        1457     1467      +10     
==========================================
+ Hits          750      760      +10     
  Misses        610      610              
  Partials       97       97              

Flag	Coverage Δ
unittests	51.80% <ø> (+0.33%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
controllers/vdoconfig_controller.go	46.72% <0.00%> (+0.50%)	⬆️

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[asifdxtreme]

LGTM