added snapscraft file

snapcraft.yaml

@@ -0,0 +1,36 @@
+name: tfswitch
+version: git
+summary: A command line tool to switch between different versions of terraform
+description: |
+  The `tfswitch` command line tool lets you switch between different versions of terraform(https://www.terraform.io/).
+  If you do not have a particular version of terraform installed, `tfswitch` will download the version you desire.
+  The installation is minimal and easy.
+  Once installed, simply select the version you require from the dropdown and start using terraform.
+architectures:
+  - build-on: arm64
+  - build-on: amd64
+assumes: [snapd2.45]
+base: core18
+
+grade: stable
+confinement: strict
+
+apps:
+  tfswitch:
+    command: bin/tfswitch
+    plugs:
+      - home
+      - network
+      - network-bind
+
+parts:
+  tfswitch:
+    source: .
+    plugin: go
+    go-importpath: github.com/warrensbox/terraform-switcher
+    build-packages:
+      - gcc-multilib
+    go-buildtags:
+      - tfswitch
+    override-build: 
+      go build  -o ../install/bin/tfswitch