ASIdiSPIM: improvements to status coloring.  Accounts for both scanner axes, cleanup corner cases of acq running, and also simplify JPanel derivate that makes colored indicator so we don't have to call repaint directly (hopefully that clears up occasional crashes I noticed)

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14757 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd