ASIdiSPIM: handle acquisition with camera in overlap mode (controller sends one extra trigger, etc.)

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14308 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
ASIdiSPIM: missed this file in last checkin

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14309 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd