Add IME support. Fixes #370.#371

Draft

bjorndm wants to merge 4 commits intogo-gl:masterfrom

Commits on Mar 3, 2023

Managed to import the glfwff tree and get it to compile.
Björn DM
committed
Add support for IME and dragging a window.
Björn DM
committed
Add support for new platform functions and a Github build script
Björn DM
committed
Add GLX dependency in build script.
Björn DM
committed