Im/python37

[ismael-mendoza]

I realized it's actually easy to keep python37 support, and many external services still support it unfortunately (binder, colab).

I also add python 3.10 because why not

[codecov]

Codecov Report

Merging #334 (324eaef) into develop (90622dc) will decrease coverage by 0.88%.
The diff coverage is 50.00%.

@@             Coverage Diff             @@
##           develop     #334      +/-   ##
===========================================
- Coverage    90.16%   89.27%   -0.89%     
===========================================
  Files           11       11              
  Lines         1433     1436       +3     
===========================================
- Hits          1292     1282      -10     
- Misses         141      154      +13     

Flag	Coverage Δ
unittests	89.27% <50.00%> (-0.89%)	⬇️

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

Impacted Files	Coverage Δ
btk/__init__.py	77.77% <50.00%> (-22.23%)	⬇️
btk/measure.py	78.57% <0.00%> (-6.55%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 90622dc...324eaef. Read the comment docs.