ASIdiSPIM: don't display axis positions if the updater has been turned off

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14754 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
ASIdiSPIM: added indication of where scanners and piezos are that is visible from all tabs.  This was a user feature request to have easy way to make sure you are centered before making alignment adjustments.

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14755 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd