Config updates for first release

[dwillmer]

• Added setup.py
• Added test runners
• Added coveragerc
• Added version file

[codecov]

Codecov Report

Merging #16 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master    #16   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          15     16    +1     
  Lines         393    394    +1     
  Branches        0     10   +10     
=====================================
+ Hits          393    394    +1

Impacted Files	Coverage Δ
tests/named_struct/test_overrides.py	100% <ø> (ø)	⬆️
tests/core/test_dict_struct.py	100% <ø> (ø)	⬆️
tests/test_mutations.py	100% <ø> (ø)	⬆️
tests/named_struct/test_numba.py	100% <ø> (ø)	⬆️
tests/core/test_base.py	100% <ø> (ø)	⬆️
tests/named_struct/test_basic_sanity.py	100% <ø> (ø)	⬆️
tests/named_struct/test_inheritance.py	100% <ø> (ø)	⬆️
privates/_version.py	100% <100%> (ø)

---

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 c6ce2e7...6825644. Read the comment docs.