Pydevice camera API

[henrypinkard]

From previous thread:

@henrypinkard: Regarding python side camera API, it is quite different from the Camera MMDevice, and it currently only supports snapping image. This is something I suspect that will require a good bit out thought/discussion regarding if and how this should differ from MMDevice, as well as how it fits with the new camera API (micro-manager/mmCoreAndDevices#243), which I plan to move towards finalizing soon.

@IvoVellekoop Let's discuss this ones the new camera API is implemented. openwfs supports more advanced triggering, asynchronous acquisition and multi-threaded data processing. PyDevice only uses a subset of the openwfs camera API at the moment, but I think it can be expanded relatively easily when the new MM camera API is ready.