ASIdiSPIM: fixed bug preventing overlap mode from working in general and another for Andor cameras specifically, replaced property read/writes of Core-camera by get/setCameraDevice() calls to try to speed up switching cameras (didn't seem to impact but leaving get/setCameraDevice())

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14347 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd