"On Linux, simultaneously pressing two keys introduces a delay for one of the keys pressed" (GLFW)

[crazybrain23]

GLFW has fixed the bug on their end, we just need a newer version to fix it in RobustToolbox. OpenTK has the patch since they upgraded to version 3.4

Steps to reproduce:

1. Play SS14 on Linux.
2. Try to move diagonally.
3. Move the wrong way for a couple seconds.
4. Second key kicks in and now you move the right way

Additional information:

Minecraft used to have the same bug https://bugs.mojang.com/browse/MC-122421

GLFW issues referencing this bug:

• When two keys are pressed at the same time the second callback is delayed glfw/glfw#1112
• Key presses with matching timestamps are being discarded on X11 glfw/glfw#1415
• GLFW 3.3 have trouble with multiples keys  glfw/glfw#1616
• fixed phantom keys but removed simultaneous keys glfw/glfw#1663

GLFW commit that fixed the bug: glfw/glfw@9a3664b
OpenTK GLFW commit that has the fix: opentk/opentk@c335b9f