CEC-247, CEC-261 Manifest and ECU display (#65)

* CEC-261 Add ECU list control

* CEC-261 Update vehicle service mock

* CEC-247 Manifest screens

* Fix test

* Remove dynamic dates from mocks

* Remove timezone from mock dates

* Fix test for date string timezone difference

src/components/Contexts/__mocks__/ManifestsContext.jsx

@@ -0,0 +1,27 @@
+import React from "react";
+
+const ManifestsContext = React.createContext();
+
+let busy = false;
+let manifests = [
+  {
+    id: 1,
+    name: "Test Manifest",
+    version: "1.0",
+    created: "2021-07-01T22:40:07.778509Z",
+    updated: "2021-07-12T18:22:13.736755Z",
+  },
+];
+let totalManifests = 1;
+
+export const ManifestsProvider = ({ children }) => {
+  return <div data-testid="mocked-manifestsprovider">{children}</div>;
+};
+
+export const useManifestsContext = () => ({
+  busy,
+  manifests,
+  totalManifests,
+  getManifests: jest.fn(() => manifests),
+  deleteManifest: jest.fn(),
+});