hangglider: physics glitches and bad areas support
the mod seems unmaintained since a year...
there already was a glitch issue, but i have made a second one because we are affected by armor, not monoids:
- https://notabug.org/Piezo_/minetest-hangglider/issues/8 <- monoids
- https://notabug.org/Piezo_/minetest-hangglider/issues/9 <- armor
there is a PR for areas we maybe could integrate: https://notabug.org/Piezo_/minetest-hangglider/pulls/5