feat: accelerated paint

[1zun4]

CEF supports hardware-accelerated off-screen rendering by enabling shared_texture_enabled via WindowInfo and passing --off-screen-rendering-enabled --shared-texture-enabled as arguments.

• Fixes Hardware accelerated off-screen rendering #506
• Old Pull Request: feat: accelerated paint #509
• Reference: https://bitbucket.org/chromiumembedded/cef/pull-requests/734
• Reference: https://github.com/chromiumembedded/cef/blob/2c411892e273c564dfb6650dcee8fea458849178/include/cef_render_handler.h#L151-L173

Unfortunately, Java CEF lacks bindings for OnAcceleratedPaint, meaning we cannot make use of this feature. This pull request enables this feature when turning shared_texture_enabled to true.

The changes were tested on a forked JCEF version (on Update to CEF 143.0.14+gdd46a37+chromium-143.0.7499.193):

• On Windows, CEF provides the D3D11 shared texture handle which can be importing using ImportMemoryWin32HandleEXT using OpenGL's EXT_external_objects_win32 which is supported by LWJGL3.
  
  Example Code

• On Linux, CEF provides dmabuf planes, which can be imported using EGL and then bound as an OpenGL texture (EGL dmabuf import / EGLImage-based path).
  
  Example Code

Demo:

540270441-a18fd487-386b-431d-a1f3-f3afa76e6854.1.mp4

Use Squash And Merge.

[magreenblatt]

It would be nice if we could also support Mac. I would be interested in your take on #514 (comment)