Use a Kubernetes volume to store results if executed as Kubernetes job

Based on !56 (merged). Implements #104 (closed).

execution/infrastructure/kubernetes/volume.yaml

+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: theodolite-pv-volume
+  labels:
+    type: local
+spec:
+  storageClassName: theodolite
+  capacity:
+    storage: 100m
+  accessModes:
+    - ReadWriteOnce
+  hostPath:
+    path: "</your/path/to/results/folder>"
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: theodolite-pv-claim
+spec:
+  storageClassName: theodolite
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 100m