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/components/help.js

@@ -0,0 +1,24 @@
+import React, {Component} from 'react';
+import {StyleSheet, View, Text, TouchableOpacity} from 'react-native';
+
+const styles = StyleSheet.create({
+});
+
+export default class Help extends Component {
+  constructor(props) {
+    super(props);
+  }
+
+  render() {
+    //const { counter } = this.props;
+
+    return (
+      <View style={{flex: 1, alignItems: 'center', justifyContent: 'center' }}>
+		<Text>This is a sample counter app.</Text>
+        <Text>Press Increase to add 1 to the value.</Text>
+        <Text>Press Decrease to subtract 1 from the value.</Text>
+      </View>
+    );
+  }
+}
+