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.

android/app/src/main/java/com/counter/MainApplication.java

@@ -8,6 +8,7 @@ import com.facebook.react.ReactInstanceManager;
 import com.facebook.react.ReactNativeHost;
 import com.facebook.react.ReactPackage;
 import com.facebook.react.shell.MainReactPackage;
+import com.oblador.vectoricons.VectorIconsPackage;
 
 import java.util.Arrays;
 import java.util.List;
@@ -24,6 +25,7 @@ public class MainApplication extends Application implements ReactApplication {
     protected List<ReactPackage> getPackages() {
       return Arrays.<ReactPackage>asList(
           new MainReactPackage()
+		, new VectorIconsPackage()
       );
     }
   };