Switching version info back to the in-between releases scheme

[jmwright]

@adam-urbanczyk @lorenzncode When we're ready, this will switch the version numbers back to dev versions. We should also figure out how to address #1252 for these periods between releases, although I'm not sure I fully understand why conda is reporting 0.0.0.

[codecov]

Codecov Report

Merging #1255 (bde7434) into master (4d53aca) will not change coverage.
The diff coverage is 0.00%.

❗ Current head bde7434 differs from pull request most recent head a86c717. Consider uploading reports for the commit a86c717 to get more accurate results

@@           Coverage Diff           @@
##           master    #1255   +/-   ##
=======================================
  Coverage   94.09%   94.09%           
=======================================
  Files          26       26           
  Lines        5432     5432           
  Branches      919      919           
=======================================
  Hits         5111     5111           
  Misses        190      190           
  Partials      131      131           

Impacted Files	Coverage Δ
cadquery/__init__.py	87.50% <0.00%> (ø)

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[jmwright]

@lorenzncode @adam-urbanczyk I've tested the 2.2.0 conda package and things look fine. I'm going to go ahead and merge this so that we can start reviewing new PRs that will go into 2.3.0.