Add initial version with help and admission controller (#1)

- It adds a helm chart that will be hosted in the Github pages URL of this repository
- an admission controller operator 
- Basic documentation for installing the operator, configuring CRDs and example pod configuration

helm/netbird-operator/templates/serviceaccount.yaml

@@ -0,0 +1,13 @@
+{{- if .Values.operator.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "netbird-operator.serviceAccountName" . }}
+  labels:
+    {{- include "netbird-operator.labels" . | nindent 4 }}
+  {{- with .Values.operator.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.operator.serviceAccount.automount }}
+{{- end }}