<DE2> Fixed collision issues

-You can test by clicking buttons on the top bar (All Songs, Playlists)
or the songs / lists buttons on the right panel.
-Clicking on the action buttons (play, pause, etc) will not do anything
right now.
-When sound is being loaded / unloaded, any collision will not be
detected.
<DE2> Merge code
Merge branch 'master' of https://github.com/Ilikecattle/EECE381Module2

Conflicts:
	software/StereoSystem/ISR_vectors.c
<DE2> See Below:
-Fix cursor buffer problem when list or song is clicked
-fix playlists panel when it showed null list
-fix equalizer implementation to be a bit more real
-fix no repsonse from cursor when loading music
<DE2>added info of song on screen when play