Improved track parameter window and added state management.

...+controller/+track/+parameter/addSoundsourceCombination.m

...roller/+track/+parameter/addSoundsourceCombinationAbove.m

...oller/+track/+parameter/duplicateSoundsourceCombination.m

...toa/+controller/+track/+parameter/inputFloatOffsetBegin.m

...artoa/+controller/+track/+parameter/inputFloatOffsetEnd.m

lib/+artoa/+controller/+track/+parameter/inputGapSize.m

...ller/+track/+parameter/inputOutputInterpolationInterval.m

lib/+artoa/+controller/+track/+parameter/open.m

...ntroller/+track/+parameter/removeSoundsourceCombination.m

...ntroller/+track/+parameter/resetSoundsourceCombinations.m

...ller/+track/+parameter/tableSoundsourceCombinationsEdit.m

...+track/+parameter/tableSoundsourceCombinationsSelection.m

lib/+artoa/+controller/+track/+parameter/updateGui.m

lib/+artoa/+gui/+track/parameter.m