Support additional algorithms

[hdavid16]

The following algorithms from GraphPlot are not in NetworkLayout:

• Community Layout
• Collapse Layout

See https://github.com/JuliaGraphs/GraphPlot.jl/blob/a04b5cfde71b65b01aa2bae43ce7a15b49c8a85d/src/collapse_plot.jl

It might be worth copying them over to this package so they can be used in GraphMakie?