Add helper functions for sound positions and lengths in MS

Right now the conversions use a constant 32khz because that is the
hardware sampling rate.  Sounds should probably be converted to 32khz
when loaded in to ensure that they playback at the correct rate.
<DE2 & Android> Added commands, modify views on Android
Merge branch 'master' of https://github.com/Ilikecattle/EECE381Module2
<DE2> Fix bug where memory was overwritten when press play