WIP: Guide compatability with ggplot2 >3.4.2

[teunbrand]

Hi there,

Apologies for this cold PR that aims to fix #267. As you may have noticed, ggplot2 has rewritten the guide system, which isn't fully backwards compatible. Unfortunately, this has also broken the interactive guides in ggiraph. This PR implements hybrid versions of the guides, that should be compatible both with current ggplot2 and the development version of ggplot2.

I'm aware that #269 aims to solve the same problem, and the main difference is that this PR has hybrid guides and doesn't solve the geom_label_interactive() issue. I'm not too familiar with interactive elements myself, so if somebody could double-check that this PR works as intended with both the CRAN and development versions of ggplot2, that'd be great. Please note that his PR is still work in progress (WIP) as I'm still trying to asses how to preserve as many guide extensions as I reasonably can.

Best,
Teun

[sigmapi]

Hi @teunbrand and thank you for the PR.
I thought too of using hybrid guides via ggplot's GuideOld.
But in the long run it will be complicated to maintain compatibility for two guide systems, we don't have that much free time. That's ggplot's job not ggiraph's. Imho, the new guide system is better and the way forward.

[teunbrand]

Thanks for the response. Please feel free to close this PR if converting to the new guides is the way forward; this PR was more of a suggestion for a transition stage.