NewportCONEX: Use correct command/response terminators

Manual says CRLF. Thanks to Marco Furchi for checking that the hardware
uses CRLF for responses as well.

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14084 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
NewportCONEX: Add search home now property

These stages need to be homed before becoming usable. Since we do not
have a standard Home() method for uniaxial stages, (and also just for
convenience), add a one-shot property for homing.

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14085 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd