[#63] First Scene WIP

Also added some test files

include/vkcv/VertexLayout.hpp

@@ -12,7 +12,8 @@ enum class PrimitiveType : uint32_t {
 	UNDEFINED = 0,
 	POSITION = 1,
 	NORMAL = 2,
-	TEXCOORD_0 = 3
+	TEXCOORD_0 = 3,
+	TEXCOORD_1 = 4
 };
 
 /* These integer values are used the same way in OpenGL, Vulkan and glTF. This

modules/asset_loader/src/vkcv/asset/asset_loader.cpp

@@ -354,6 +354,8 @@ int loadScene(const std::string &path, Scene &scene){
                     attribute.type = PrimitiveType::NORMAL;
                 } else if (attrib.first == "TEXCOORD_0") {
                     attribute.type = PrimitiveType::TEXCOORD_0;
+                } else if (attrib.first == "TEXCOORD_1") {
+                    attribute.type = PrimitiveType::TEXCOORD_1;
                 } else {
                     return 0;
                 }