docs, script_function::get_namespace, #include pack.dat deprication

* Packs should now be embedded using `#pragma embed packname.dat` at all times.

* This reregisters script_function entirely to get rid of the c++ script_function class and instead registers asIScriptFunction directly. You can now create a funcdef, then a handle to that funcdef, then do script_function_instance.retrieve(@handle); before calling the function handle directly!

doc/src/appendix/Changelog.md

@@ -2,6 +2,7 @@
 This document lists all major changes that have taken place in NVGT since we started keeping track.
 
 ## New in 0.89.0-alpha (unreleased):
+* Including pack files via the `#include` directive has been removed in favor of being able to include scripts of any extension, you should use the `#pragma embed` directive to do this instead.
 * NVGT games now run on intel as well as arm mac computers!
 * The calendar object is now registered as a reference type with Angelscript meaning it now supports handles, for BGT backwards compatibility. The other datetime classes are still value types.
 * Added bool sdl_set_hint(const string&in hint, const string&in value, sdl_hint_priority priority = SDL_HINT_NORMAL) and string sdl_get_hint() functions, allowing the user to customize over 200 different SDL options from screen orientation to the video backend used and many more.

doc/src/manual/-BGT Upgrading+.md

@@ -18,3 +18,4 @@ our goal is to make the transition as seamless as possible from BGT to NVGT, but
 * The dynamic_menu.bgt include is now called bgt_dynamic_menu.nvgt. This is because NVGT now includes it's own menu class called menu.nvgt.
 * There is a type called `var` in the engine now, so you may need to be careful if your project contains any variables named var.
 * It's worth noting that unlike BGT, NVGT by default attempts to fully package your game for you including sounds, libraries, documents and any other assets into a .zip file or similar on other platforms intended for distrobution. If you don't like this behavior, you can create a file next to nvgt.exe called config.properties and add the line build.windows_bundle = 0 which will cause NVGT to just produce a standalone executable like BGT did, though you now may need to copy some libraries from the lib folder for the compiled product to run.
+* In bgt, you could include pack files with the `#include` directive. In nvgt, we've decided that this should only include code. To embed packs, you can instead add the line `#pragma embed packname.dat` to your project, the extension can be any of your choosing for both code and packs this way.

doc/src/references/builtin/Audio/Classes/sound/Methods/set_position.md

@@ -10,7 +10,7 @@ Sets the sound's position in 3d space.
 * float sound_x: the x position of the sound.
 * float sound_y: the y position of the sound.
 * float sound_z: the z position of the sound.
-* float rotation: the rotation of the listener (in degrees).
+* float rotation: the rotation of the listener (in radians).
 * float pan_step: the pan step (e.g. how extreme the panning is).
 * float volume_step: the volume step (very similar to pan_step but for volume).
 

src/angelscript.cpp

@@ -304,10 +304,6 @@ int IncludeCallback(const char* filename, const char* sectionname, CScriptBuilde
 	try {
 		Path include(Path::expand(filename));
 		include.makeAbsolute();
-		if (include.getExtension() != "nvgt") { // Embedded pack
-			embed_pack(include.toString(), filename);
-			return 0;
-		}
 		include_file = include;
 		if (include_file.exists() && include_file.isFile()) return builder->AddSectionFromFile(include.toString().c_str());
 		include = Path(sectionname).parent().append(filename);