RFR: 8329820: [Linux] Prefer EGL over GLX

[Thiago Milczarek Sayao]

GLX is X only while EGL is need for Wayland and also works with X.org.

I know there are limitations on Xorg and I still need to investigate it.

GLX replacement for Xorg is not mandatory - this can be further discussed. 

This is a work in progress and it's on the first step (making it work).

See:
[Switching the Linux graphics stack from GLX to EGL](https://mozillagfx.wordpress.com/2021/10/30/switching-the-linux-graphics-stack-from-glx-to-egl/)
[Prefer EGL to GLX for the GL support on X11](https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/3540)

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Commit messages:
 - - Review points
 - Rework native library loading because it can now vary
 - Refactor common functionality
 - Try EGL and fallback to GLX
 - Allow both EGL and GLX
 - Allow both EGL and GLX
 - Allow both EGL and GLX
 - Allow both EGL and GLX
 - Merge branch 'master' into egl
 - Merge branch 'master' into egl
 - ... and 1 more: https://git.openjdk.org/jfx/compare/eca32354...e8330501

Changes: https://git.openjdk.org/jfx/pull/1381/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1381&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329820
  Stats: 2352 lines in 35 files changed: 1771 ins; 486 del; 95 mod
  Patch: https://git.openjdk.org/jfx/pull/1381.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1381/head:pull/1381

PR: https://git.openjdk.org/jfx/pull/1381