Commit everything done until beginning version control

Removed the boilerplate's counter, started a drawer menu, added a
toolbar to access the menu, created the calculator form and state.

src/reducers/menu.js

@@ -0,0 +1,43 @@
+import React, {Component} from 'react';
+import * as types from '../actions/actionTypes';
+
+import CalcApp from '../containers/calcApp';
+import HelpApp from '../containers/helpApp';
+
+const initialState = {
+	isOpen: false,
+	refdrawer: null,
+	page: <CalcApp />,
+	subtitle: 'Calculator Page',
+};
+
+export default function menu(state = initialState, action = {}) {
+  switch (action.type) {
+    case types.MENUOPEN:
+      return {
+        ...state,
+		isOpen: true,
+      };
+    case types.MENUCLOSE:
+      return {
+        ...state,
+		isOpen: false,
+      };
+    case types.MAIN:
+      return {
+        ...state,
+		isOpen: false,
+        page: <CalcApp />,
+		subtitle: 'Calculator Page',
+      };
+    case types.HELP:
+      return {
+        ...state,
+		isOpen: false,
+        page: <HelpApp />,
+		subtitle: 'Help',
+      };
+    default:
+      return state;
+  }
+}