Move Makie Support to QMLMakie

[steffenhaug]

This is probably not quite ready for a merge, but I'm starting a PR so we have a place to discuss where to go from here, and for visibility in case someone wants to play around with it or help out.

This PR moves the Makie Support to a new package, QMLMakie, as suggested in the roadmap
and discussed in #206.

This has a number of benefits:

• Decoupling the Makie integration from the QML version
• Possibility of compat bounds
• No need to rely on janky loading of GLMakie which breaks PackageCompiler.jl

As it is, I basically just copied the code from makie_support.jl verbatim and made the necessary changes injlqml to initialize Makie Support in a separate JlCxx module, so that can be wrapped by QMLMakie.jl. There is still a lot of work to do before QMLMakie can be registered, but simple examples already work:

[barche]

Thanks, tried it out and it works beautifully. Some comments:

• Could you split the commits in this PR in one commit to fix the white space consistency and one commit that has the actual change?
• steffenhaug/QMLMakie should probably be named steffenhaug/QMLMakie.jl
• In your QMLMakie package, the module is named QtMakie but that should be QMLMakie

The last two points are of no infulence on this PR of course.

[steffenhaug]

Thanks, tried it out and it works beautifully. Some comments:

Glad to hear :-)

Could you split the commits in this PR in one commit to fix the white space consistency and one commit that has the actual change?

Yeah, will do! I accidentally made the commit before i noticed the LSP had completely blown out the diff :-p

steffenhaug/QMLMakie should probably be named steffenhaug/QMLMakie.jl

Agreed!

In your QMLMakie package, the module is named QtMakie but that should be QMLMakie

Oh yeah, nice catch. Thanks!

[steffenhaug]

I ran JuliaFormatter on all the files in src while I was at it. That made for quite a large change technically unrelated to the PR. Let me know if that isn't desirable.

Also, if you have an opinion on style, we could add a JuliaFormatter config file to the project, so everyone is on the same page. As is, I just ran it with the default settings.