Add video streaming for ANAFI Thermal

[Brenn10]

The RGB stream for the ANAFI Thermal is available and it would be a very nice feature to be able to stream the thermal image stream as well.

I imagine this will lead to bandwidth issues between the two video streams, so I would propose am RGB image stream, thermal image stream, and RGB/thermal overlaid image stream like shown in the mobile app. These methods could be switchable (only one stream type can be running at any given time), or all could be allowed to run simultaneously for lower frame rate video.