Added updating of display name to profile. Added employees table.

client/src/redux/messaging/messaging.selectors.js

@@ -0,0 +1,8 @@
+import { createSelector } from "reselect";
+
+const selectMessaging = state => state.messaging;
+
+export const selectChatVisible = createSelector(
+  [selectMessaging],
+  messaging => messaging.visible
+);