Added the android v4 support jar file.

The Android v4 support API assists with development of applications for
Android API level 4 or later. This allows for backwards compatible
versions of functionality used in Creepypasta Files.

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>
Added the Apache 2 license for Android.

Since the Creepypasta Files repository is distributing certain Android
APIs along with the Creepypasta Files source code, the license lets
other developers and users know the terms of distribution.

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>
Added common project files.

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>