Add shorthand for 'func deploy --remote' to allow 'func deploy -R' according to the Synopsis

[grafvonb]

According to the Synopsis of func deploy:

SYNOPSIS
	{{rootCmdUse}} deploy [-R|--remote] [-r|--registry] [-i|--image] [-n|--namespace]
	             [-e|--env] [-g|--git-url] [-t|--git-branch] [-d|--git-dir]
	             [-b|--build] [--builder] [--builder-image] [-p|--push]
	             [--platform] [-c|--confirm] [-v|--verbose] [--build-timestamp]

func deploy --remote should have a shorthand func deploy -R which is not implemented currently.

[grafvonb]

/assign

[grafvonb]

@lance Actually it is a mini-bug. How do we handle this? Should I correct it simply in the scope of #1466?

[lance]

/kind bug
@grafvonb I don't think it's bad enough to need a backport. I think it should just be a simple fix.

[grafvonb]

@lance maybe a good 'good-first-issue' for a new committer?

[grafvonb]

/unassign

[lance]

/kind good-first-issue