Automatically mask out invalid frames in image series

[psavery]

Automatically mask frames that have beam characteristics outside of a specified range.

See discussion on #592.

[donald-e-boyce]

As commented in #592, I ran an example on a single crystal ruby, and there were no problems.

The only thing to remember is to change the omega metadata when you use a subset of the frames. I am thinking we could have the ProcessedImageSeries do that automatically if a frame_list is present, i.e. if it has omega in the metadata, reset it to omega[frame_list].

[ZackAttack614]

@donald-e-boyce has there been any progress on this since last update?