Depend upon FilePathsBase instead of FilePaths

[frankier]

Might it be possible to depend upon FilePathsBase rather than FilePaths? I'm having some problems with FilePaths and this might help, plus it could improve compilation speed.

Let me know if you would like me to put together a PR.

[frankier]

I think this would help remove this hack from Makie: https://github.com/MakieOrg/Makie.jl/blob/ae8c1a455b20586febab682bc709a4ddd60d935f/src/Makie.jl#L15-L20

[davidanthoff]

We depend on FilePaths.jl because we need the integration with URIs.jl, which is not part of FilePathsBase.jl...

[SimonDanisch]

Is that absolutely necessary, or could we simply extract some functions and handle things a bit more manually?
FilePaths seems to be pretty horrible for load times and I didn't realize how much it was until now (from ~4s to 6s load time in Makie).

[frankier]

Yeah FilePaths.jl is effectively deprecated. I've fixed my old PR here: #140