This adds two new control objects:

    hotcue_X_color_prev
    hotcue_X_color_next

These allow users to cycle through the available colors in their
palette and makes it possible to modify colors through controller
mappings (e.g. by mapping the parameter +/- buttons).

This makes assigning colors to cue points much more straightforward on
this controller. When pressing a performance pad (e.g. to activate a
hotcue, the mapping "remembers" the hotcue number and allows cycling
through the available colors of that hotcue using the PARAMETER 2 +/-
buttons.

…cycle-support