Suppress unavoidable unchecked warnings

These are due to the table model using Object for cell values, so it's a
case where suppressing the warnings is the recommended remedy.

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14594 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
MMDialog: Make sure that window settings are saved, even when the window is disposed

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14595 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd