Sound system has now a channel system.
Improved SoundVolume Implementation, including a much faster and accurate way to getVolume.
Now you can give a volume level upon loading of effects/music. This means that you don't have to give a volume level now when playing a effect/music, it will just use the last used value
Renamed SoundService to AudioManager to keep the naming somehow logic and coherent.
Merge github.com:GlenDC/StarEngine