v1.5.4_rc1 - Prey 2006 - Jollyfull xmas

This is the first release candidate of v1.5, while this seen has a small release, this was made due to the amount of folks wanting to try out the next version, reminder if you find any bugs, please report them!

What's Changed

• game portal/key binding tips/ARB fragment shader local parameter by @glKarin in #6
• Add FreeBSD CI workflow by @fpiesche in #9
• Improve metadata by @fpiesche in #10
• Improve CMake install behavior for Linux by @fpiesche in #11
• Fix testing code oops by @fpiesche in #12
• Prey: add buttonDef and background in GUI by @glKarin in #14
• ugly superWindowDef by @glKarin in #15
• don't use superwindow margins by @glKarin in #16

New Contributors

• @glKarin made their first contribution in #6
• @fpiesche made their first contribution in #9

Full Changelog: v1.4...v1.5.4_rc1