PhotonQParts: Add basic support to provide alternate key layouts

Initially, included are two QWERTY and QWERTZ layouts where SYM = ALT
and OK = CTRL, derived from atomphil's modication:
http://www.android-hilfe.de/motorola-photon-q-forum/396216-motorola-photon-q-modifizierte-belegung-des-hardwarekeyboard.html
Refinements and additional language specific layouts should follow.
Suggestions and layout contributions are welcome.

Change-Id: Ibc7cbd008214ba02b80cb478a8a38b97ee80a62c