[Helm] Add helm plugin code from Operator SDK (#109)

This PR moves the helm operator plugin code from Operator SDK
to `pkg/plugins/helm/v1`. The previous folder contained
obsolete code and has been removed.

Author: varshaprasad96

pkg/plugins/v1/api.go renamed to pkg/plugins/helm/v1/api.go

@@ -20,9 +20,9 @@ import (
 	"strings"
 
 	"github.com/iancoleman/strcase"
+	"github.com/operator-framework/helm-operator-plugins/pkg/plugins/helm/v1/chartutil"
+	"github.com/operator-framework/helm-operator-plugins/pkg/plugins/helm/v1/scaffolds"
 	"github.com/operator-framework/helm-operator-plugins/pkg/plugins/util"
-	"github.com/operator-framework/helm-operator-plugins/pkg/plugins/v1/chartutil"
-	"github.com/operator-framework/helm-operator-plugins/pkg/plugins/v1/scaffolds"
 	"github.com/spf13/pflag"
 	"helm.sh/helm/v3/pkg/chart"
 	"sigs.k8s.io/kubebuilder/v3/pkg/config"

pkg/plugins/v1/chartutil/chart.go renamed to pkg/plugins/helm/v1/chartutil/chart.go

@@ -25,7 +25,7 @@ import (
 	"helm.sh/helm/v3/pkg/chart"
 	"helm.sh/helm/v3/pkg/repo/repotest"
 
-	"github.com/operator-framework/helm-operator-plugins/pkg/plugins/v1/chartutil"
+	"github.com/operator-framework/helm-operator-plugins/pkg/plugins/helm/v1/chartutil"
 )
 
 func TestChart(t *testing.T) {

pkg/plugins/v1/chartutil/chart_test.go renamed to pkg/plugins/helm/v1/chartutil/chartutil_test.go

@@ -55,9 +55,5 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "test-chart.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create -}}
-    {{ default (include "test-chart.fullname" .) .Values.serviceAccount.name }}
-{{- else -}}
-    {{ default "default" .Values.serviceAccount.name }}
-{{- end -}}
-{{- end -}}
+{{ default "controller-manager" .Values.serviceAccount.name }}
+{{- end -}}