Apollo v2.3

This is a big update!

• Added ability to pass arrays back and forth between GML and Lua.
• Added a GMS2.3 version, which is able to pass structs and methods to Lua.
• Added lua_byref, which allows to pass arrays and structs by reference to Lua.
• Added lua_script for packing up scripts as sub-values pre-2.3 easier.
• Added Mac (GMS2 only) and Linux binaries.
• Updated to Lua 5.4
• Following never-ending issues with dynamic library loading on Mac, Apollo now links Lua statically, producing a single native binary per platform.
• Made a lot of organization effort, splitting both GML and C++ files into smaller, human-readable portions.