Use Kubernetes Client instead of Controller APIs from CLI (#2605)

Use the Kubernetes and Fission Client from CLI instead of Controller API.
This removes port-forwarding for the controller across Fission CLI mostly.

* Use configurable client in CLI
* Move resource namespace under cmd client
* use server to get fission version
* get archive with URL

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>
Co-authored-by: Sanket Sudake <sanketsudake@gmail.com>

pkg/fission-cli/cmd/version/version.go

@@ -36,7 +36,7 @@ func Version(input cli.Input) error {
 }
 
 func (opts *VersionSubCommand) do(input cli.Input) error {
-	ver := util.GetVersion(input.Context(), opts.Client())
+	ver := util.GetVersion(input.Context(), input, opts.Client())
 	bs, err := yaml.Marshal(ver)
 	if err != nil {
 		return errors.Wrap(err, "error formatting versions")