Restructure package and documentation to make it more user- and developer-friendly

[gdalle]

Hey there,
I would like to use MetaGraphsNext.jl for my research, so I though "why not clean it up a bit first?". Here is my attempt to make it more accessible to users and developers.

[bramtayl]

Wow, this looks amazing! I'm glad you find the package useful!

[gdalle]

@bramtayl do you think I've gained a sufficient knowledge of the package to get github permissions?

[bramtayl]

Sure, but I don't have permission to give you permissions. I think it would have to be someone else in JuliaGraphs (not sure who)

[bramtayl]

Dunno if @sbromberger is around but maybe he can give you permissions

[codecov]

Codecov Report

Merging #16 (917dc57) into master (9aeca07) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master       #16   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            5         9    +4     
  Lines          217       227   +10     
=========================================
+ Hits           217       227   +10     

Impacted Files	Coverage Δ
src/MetaGraphsNext.jl	100.00% <ø> (ø)
src/persistence.jl	100.00% <ø> (ø)
src/dict_utils.jl	100.00% <100.00%> (ø)
src/lightgraphs.jl	100.00% <100.00%> (ø)
src/metagraph.jl	100.00% <100.00%> (ø)
src/metaundigraph.jl	100.00% <100.00%> (ø)
src/weights.jl	100.00% <100.00%> (ø)
src/overrides.jl	100.00% <0.00%> (ø)
... and 3 more

---

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[gdalle]

Dunno if @sbromberger is around but maybe he can give you permissions

In the meantime, maybe you can merge this?

[gdalle]

Hey @bramtayl,
Thanks for the merge! Unfortunately the Documenter CI step failed. Normally my latest commit on the gdalle branch fixed it, I'll open a new PR.

[bramtayl]

Ok

[bramtayl]

@gdalle if you're still interested in helping maintain I think @jpfairbanks is in charge now

[gdalle]

Okay, so what should I do?

[bramtayl]

Hmm, not sure, maybe @jpfairbanks can give you PR access?