Introduce a Helm chart for the Theodolite operator

This MR adds a Helm chart for the Theodolite operator.

Closes #180 (closed) Closes #116 (closed)

TOOO

• fix DNS problems (cannot reach the lag analysis via service)

execution/helm/theodolite-operator/templates/service.yaml

+{{- if .Values.operator.enabled -}}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "theodolite-operator.fullname" . }}
+  labels:
+    {{- include "theodolite-operator.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.serviceAnalysis.type }}
+  ports:
+    - port: {{ .Values.serviceAnalysis.port }}
+      protocol: TCP
+  selector:
+    {{- include "theodolite-operator.fullname" . | nindent 4 }}
+{{- end }}
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