istio mTLS for kiali

Package MR for https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/1015

chart/templates/peerauthentication.yaml

+{{- if and .Values.istio.enabled .Values.istio.mtls }}
+apiVersion: "security.istio.io/v1beta1"
+kind: PeerAuthentication
+metadata:
+  name: default-kiali
+  namespace: {{ .Release.Namespace }}
+spec:
+  mtls:
+    mode: STRICT
+{{- end }}
\ No newline at end of file