[LPD] [Dark] Save LPD bad pixel dark data as uint32, not float64
Description
The BadPixelsDark constants for LPD were being saved as float64, when they should be uint32. This isn't causing a practical problem, but it's unnecessary work for saving and loading constants, and wastes disk space.
Fixes calibration/planning#138
How Has This Been Tested?
TBD
Types of changes
- Bug fix (non-breaking change which fixes an issue)
Checklist:
- My code follows the code style of this project.
