Split engine to packages NazaraUtils and NZSL (#375)

* Move code to NazaraUtils and NZSL packages

* Reorder includes

* Tests: Remove glslang and spirv-tools deps

* Tests: Remove glslang init

* Remove NazaraUtils tests and fix Vector4Test

* Fix Linux compilation

* Update msys2-build.yml

* Fix assimp package

* Update xmake.lua

* Update xmake.lua

* Fix shader compilation on MinGW

* Final fixes

* The final fix 2: the fix strikes back!

* Disable cache on CI

* The return of the fix™️

tests/main.cpp

@@ -7,20 +7,11 @@
 #include <Nazara/Core/Modules.hpp>
 #include <Nazara/Network/Network.hpp>
 #include <Nazara/Physics2D/Physics2D.hpp>
-#include <Nazara/Shader/Shader.hpp>
 #include <Nazara/Utility/Utility.hpp>
-#include <glslang/Public/ShaderLang.h>
 
 int main(int argc, char* argv[])
 {
-	Nz::Modules<Nz::Audio, Nz::Network, Nz::Physics2D, Nz::Shader, Nz::Utility> nazaza;
+	Nz::Modules<Nz::Audio, Nz::Network, Nz::Physics2D, Nz::Utility> nazaza;
 
-	if (!glslang::InitializeProcess())
-		return EXIT_FAILURE;
-
-	int result = Catch::Session().run(argc, argv);
-
-	glslang::FinalizeProcess();
-
-	return result;
+	return Catch::Session().run(argc, argv);
 }