feat(observability): Created observability-client stack

Moved vector from core stack to observability-client
Added victoriametrics-k8s-stack to observability-client for easy vmagent
and scraping config

template/registry/observability-client.yaml

@@ -0,0 +1,24 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: observability-client
+  namespace: argocd
+  labels:
+    env: dev
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  destination:
+    name: in-cluster
+    namespace: argocd
+  source:
+    path: "{{{ .Env.CLIENT_REPO_ID }}}/{{{ .Env.DOMAIN }}}/stacks/observability-client"
+    repoURL: "https://{{{ .Env.CLIENT_REPO_DOMAIN }}}/{{{ .Env.CLIENT_REPO_ORG_NAME }}}"
+    targetRevision: HEAD
+  project: default
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true