Allow custom basename when saving mcorr memmaps

[kushalkolar]

Description

Currently, if the same input file is put through motion correction with different parameter variants the resulting motion corrected memmap will always have the same filename. I could not find a way to set the filename of mcorrr memmaps that are saved when setting save_movie=True in MotionCorrect.motion_correct().

I added a kwarg called base_name_prefix to MotionCorrect.motion_correct() which allows a user to append a prefix to the basename that is used when saving memmaps. By default it is set to None, but if a user supplies a str it will set that as a prefix to the base_name when saving the memmap.

Let me know if there's a better way to do this!

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would break back-compatibility)
• Changes in documentation or new examples for demos and/or use cases.

Branching

targets dev

Has your PR been tested?

Tested that currently functionality isn't broken by running test_demos.sh, no failures. Also tested the new functionality and it does work, prefixes are set to saved memmaps.

[kushalkolar]

closing because this has been replaced by #978 which has already been merged.