Refactor entire project (#39)

- Use more modern TypeScript conventions
- Use JavaScript Kubernetes Client
- Add unit tests
- Add integration tests
- Add TypeScript compile verify workflow
- Switch codeowners

tests/sample-secret.yml

@@ -0,0 +1,35 @@
+apiVersion: v1
+data:
+  ca.crt: LS0tLS1CRUdJTiBDRWyUSUZJQ
+  namespace: ZGVmBXUsLdA==
+  token: ZXlKaGJHY2lPcUpTVXpJMU5pSX=
+kind: Secret
+metadata:
+  annotations:
+    kubernetes.io/service-account.name: default
+    kubernetes.io/service-account.uid: e1414a3z-22fe-48d1-ab9e-18e4a5b91c
+  creationTimestamp: "2020-03-02T06:40:31Z"
+  managedFields:
+  - apiVersion: v1
+    fieldsType: FieldsV1
+    fieldsV1:
+      f:data:
+        .: {}
+        f:ca.crt: {}
+        f:namespace: {}
+        f:token: {}
+      f:metadata:
+        f:annotations:
+          .: {}
+          f:kubernetes.io/service-account.name: {}
+          f:kubernetes.io/service-account.uid: {}
+      f:type: {}
+    manager: kube-controller-manager
+    operation: Update
+    time: "2020-03-02T06:40:31Z"
+  name: default-token-bl8ra
+  namespace: default
+  resourceVersion: "278"
+  selfLink: /api/v1/namespaces/default/secrets/default-token-bl8ra
+  uid: e6d8b21b-2e3a-4606-98za-54fb44fdc
+type: kubernetes.io/service-account-token