feat: Read params from file for template/workspace creation (#1541)

* Read params from file for template/workspace creation

* Use os.ReadFile

* Refactor reading params into a separate module

* Add comments and unit tests

* Rename variable

* Uncomment and fix unit test

* Fix comment

* Refactor tests

* Fix unit tests for windows

* Fix unit tests for Windows

* Add comments for the hotfix

go.mod

@@ -120,6 +120,7 @@ require (
 	google.golang.org/api v0.79.0
 	google.golang.org/protobuf v1.28.0
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
 	k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9
 	nhooyr.io/websocket v1.8.7
 	storj.io/drpc v0.0.30
@@ -250,5 +251,4 @@ require (
 	gopkg.in/ini.v1 v1.62.0 // indirect
 	gopkg.in/square/go-jose.v2 v2.6.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
-	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
 )