Virtual Console/Audio Triggers: fixed incorrect number of bars when reconfiguring the widget

Virtual Console/Audio Triggers: multiple triggers at the same time and with different number of bars are now supported
RGB Matrix Editor: correctly update colors when the algorithm is changed

Fixed layout issues on VCAudioTriggers and VCCueList
Fixed VCAudioTriggers wrong QObject connection
Added functionStarting signal and stopFunction method to VCAudioTriggers to use them in a Solo Frame