Let's make this working on Android

[erolmatei]

Hello again.

For the shaders, the HPL1 repo contains some drop-in replacements that work perfectly. Oddly enough, only the highest shaders work well and the others not-so-much, at least on my Intel GPU on Linux.

For the rest, I am experiencing issues with AngelScript not properly binding some core functions, like SetJointControllerPropertyFloat (which is used to open the trapdoor inside the mine). Did that happen to you as well?

Also, did the old GCC ignore blatant violations in AngelScript code (in particular a "return 0" in a function returning a asUPtr struct) to you?