MNT: Check repo dir for a checkpoints dir as well as within package dir

[scottclowe]

No description provided.

[codecov]

Codecov Report

Base: 27.96% // Head: 27.98% // Increases project coverage by +0.01% 🎉

Coverage data is based on head (86146df) compared to base (8c5dd13).
Patch coverage: 37.50% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #336      +/-   ##
==========================================
+ Coverage   27.96%   27.98%   +0.01%     
==========================================
  Files          45       45              
  Lines        5439     5439              
  Branches     1332     1333       +1     
==========================================
+ Hits         1521     1522       +1     
+ Misses       3667     3666       -1     
  Partials      251      251              

Flag	Coverage Δ
unittests	27.98% <37.50%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
echofilter/ui/checkpoints.py	35.51% <37.50%> (+0.54%)	⬆️

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