Added function to get the delay and see what cue names are in a playback
Cue copy constructor was missing some data
Updates to Cue and stuff

Functions for getting total cue length
cue type (remains to be seen if that one is useful)
Cue delay adjusted to make implementation easier
Tweaks to Cue

Length function is much faster now
setDelay has been activated at last
Updating test rig files
Additional functions for accessing layers in Playback
Layers now maintain current cue, not cue lists
Merge remote-tracking branch 'upstream/cues'

Conflicts:
	Lumiverse/source/Demos/CueLight/CueLightDemo.cpp
Merge remote-tracking branch 'origin/master'