refactor(types): Move to _internals

[tony]

libvcs._internals.types

[codecov]

Codecov Report

Merging #372 (8373b86) into master (1dc1816) will decrease coverage by 0.17%.
The diff coverage is 90.00%.

❗ Current head 8373b86 differs from pull request most recent head 1c19cef. Consider uploading reports for the commit 1c19cef to get more accurate results

@@            Coverage Diff             @@
##           master     #372      +/-   ##
==========================================
- Coverage   70.37%   70.19%   -0.18%     
==========================================
  Files          21       20       -1     
  Lines        1890     1879      -11     
==========================================
- Hits         1330     1319      -11     
  Misses        560      560              

Impacted Files	Coverage Δ
tests/projects/test_git.py	98.83% <66.66%> (-0.59%)	⬇️
libvcs/cmd/git.py	54.16% <100.00%> (ø)
libvcs/cmd/hg.py	69.73% <100.00%> (ø)
libvcs/cmd/svn.py	52.23% <100.00%> (ø)
libvcs/projects/base.py	100.00% <100.00%> (ø)
libvcs/projects/git.py	76.76% <100.00%> (+0.35%)	⬆️
libvcs/projects/svn.py	65.26% <100.00%> (ø)
tests/projects/test_hg.py	95.23% <100.00%> (-0.22%)	⬇️
libvcs/_internal/types.py

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