[FIX] Launcher APK does not enable PythonService

This leads to "PythonService not found" on intent sent:
`01-11 05:43:10.866  1385  2905 W ActivityManager: Unable to start service Intent { cmp=org.kivy.pygame/org.renpy.android.PythonService (has extras) }: not found`

- Enabled PythonService for `launcher` APK too.
Merge pull request #192 from alanjds/fix-launcher-service

[FIX] Launcher APK does not enable PythonService