Update for Materials Project v2 API

[matthewcarbone]

No description provided.

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.81% 🎉

Comparison is base (cd1058f) 80.09% compared to head (a5bbf17) 80.90%.
Report is 2 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #190      +/-   ##
==========================================
+ Coverage   80.09%   80.90%   +0.81%     
==========================================
  Files          13       13              
  Lines        1040     1011      -29     
==========================================
- Hits          833      818      -15     
+ Misses        207      193      -14     

Files Changed	Coverage Δ
lightshow/__init__.py	83.33% <100.00%> (ø)
lightshow/database.py	89.86% <100.00%> (+6.24%)	⬆️

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[matthewcarbone]

@FCMeng no review necessary, but I've updated Lightshow for the Materials Project v2! 😁