Refactor to use Tendrils api, load_config, ztf, tns

[emirkmo]

Move the above to tendrils as version 1 of the refactor.

Partially closes #49

[codecov]

Codecov Report

Merging #57 (0022a7f) into devel (289ecd5) will not change coverage.
The diff coverage is 48.27%.

@@           Coverage Diff           @@
##            devel      #57   +/-   ##
=======================================
  Coverage   29.15%   29.15%           
=======================================
  Files          36       36           
  Lines        2627     2627           
=======================================
  Hits          766      766           
  Misses       1861     1861           

Impacted Files	Coverage Δ
flows/__init__.py	100.00% <ø> (ø)
run_catalogs.py	0.00% <0.00%> (ø)
run_photometry.py	0.00% <0.00%> (ø)
run_plotlc.py	0.00% <0.00%> (ø)
run_querytns.py	0.00% <0.00%> (ø)
run_upload_photometry.py	0.00% <0.00%> (ø)
flows/tns.py	27.77% <44.44%> (ø)
flows/aadc_db.py	100.00% <100.00%> (ø)
flows/catalogs.py	33.69% <100.00%> (ø)
flows/load_image.py	35.38% <100.00%> (ø)
... and 17 more

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[emirkmo]

This works to remove the API to tendrils for now, but runners remain.