Add Galaxy5Parts application & support files

Currently provides the following options:

Audio:
* Samsung external amplifier filter
* Attenuation - speaker
* Attenuation - headset
* Attenuation - FM (headset/speaker)

Memory management:
* Background process limit (can be saved, sets on every boot)
* Dynamic LMK (lowmemorykiller) for better swap performance
* SD card read-ahead buffer
* Swap

Screen settings:
* Fake dual-touch (OuNao's Syanptics DT emulation)

Report bug:
* Generate bug report

Change-Id: Idd8c0ba4ef3b93b6b48d5b5d999a93dd50dfd69f