Astropy observer doesn't appear to be pressent in the dependency list or mkidcore

This causes loading the bad pixel mask to fail with:

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-7-4075bd20be7a> in <module>
----> 1 o.bad_pixel_mask

~/Workspace/analysis/MKIDPipeline/mkidpipeline/photontable.py in bad_pixel_mask(self)
    366     def bad_pixel_mask(self):
    367         """A boolean image with true where pixel data has problems """
--> 368         from mkidpipeline.pipeline import PROBLEM_FLAGS  # This must be here to prevent a circular import!
    369         return self.flagged(PROBLEM_FLAGS)
    370

~/Workspace/analysis/MKIDPipeline/mkidpipeline/pipeline.py in <module>
     15     if info.name == 'sample':
     16         continue
---> 17     mod = import_module(f"mkidpipeline.steps.{info.name}")
     18     globals()[info.name] = mod
     19     PIPELINE_STEPS[info.name] = mod

~/.conda/envs/wheatley/pipeline/lib/python3.7/importlib/__init__.py in import_module(name, package)
    125                 break
    126             level += 1
--> 127     return _bootstrap._gcd_import(name[level:], package, level)
    128
    129

~/Workspace/analysis/MKIDPipeline/mkidpipeline/steps/drizzler.py in <module>
     40 from mkidpipeline.photontable import Photontable
     41 import mkidpipeline.config
---> 42 from mkidcore.utils import astropy_observer
     43
     44 EXCLUDE = ('pixcal.dead', 'pixcal.hot', 'pixcal.cold', 'beammap.noDacTone', 'wavecal.bad', 'wavecal.failed_convergence',

https://github.com/MazinLab/MKIDPipeline/blob/f4ad012c574e0ef5718706e6712b5c743eb3e697/mkidpipeline/steps/drizzler.py#L42

MazinLab / MKIDPipeline

Astropy observer doesn't appear to be pressent in the dependency list or mkidcore #89