Use enum etc

[wiseodd]

Better layout handling via enums. Also, simplify quickstart in README

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (60489e5) to head (04c436a).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master       #21   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            5         5           
  Lines          104       112    +8     
=========================================
+ Hits           104       112    +8     

Files with missing lines	Coverage Δ
pub_ready_plots/__init__.py	100.00% <100.00%> (ø)
pub_ready_plots/pub_ready_plots.py	100.00% <100.00%> (ø)
pub_ready_plots/styles.py	100.00% <100.00%> (ø)
tests/test_context.py	100.00% <100.00%> (ø)
tests/test_core_func.py	100.00% <100.00%> (ø)