Added standard Android project files.

The Android Manifest contains the overall structure of the app, declares
device compatibility and defines the necessary permissions to run the
app. The other files are used at build time.

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>
Added the database dump file.

To create the actual database, run the following command:

sqlite3 coloring_book.db < coloring-book.sql

An entire dump file is sufficient as there is not much data in the
database. However, if it ever gets huge, consider using change scripts.

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