WIP Loading Header & Remaining changes from Sprint 1

client/src/redux/application/application.selectors.js

@@ -0,0 +1,8 @@
+import { createSelector } from "reselect";
+
+const selectApplication = state => state.application;
+
+export const selectLoading = createSelector(
+  [selectApplication],
+  application => application.loading
+);