Documentation

[jd-lara]

The time has finally arrived to make the docs for PSI. I will open this PR as a draft to keep the conversation going on content.

[codecov[bot]]

Codecov Report

Merging #866 (834ffc2) into master (52539c8) will not change coverage. The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #866   +/-   ##
=======================================
  Coverage   85.31%   85.31%           
=======================================
  Files         117      117           
  Lines       12586    12586           
=======================================
  Hits        10738    10738           
  Misses       1848     1848           

Flag	Coverage Δ
unittests	85.31% <ø> (ø)

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

Impacted Files	Coverage Δ
src/core/device_model.jl	88.00% <ø> (ø)
src/core/formulations.jl	100.00% <ø> (ø)
src/core/parameters.jl	80.48% <ø> (ø)
src/core/variables.jl	65.90% <ø> (ø)
src/operation/problem_results.jl	91.90% <ø> (ø)
src/simulation/simulation_problem_results.jl	81.69% <ø> (ø)
src/utils/printing.jl	66.37% <ø> (ø)

[claytonpbarrows]

@jd-lara Can you look this over so that we can get the partially complete new docs merged?