add VEC3 model loader

src/coders/vec3.hpp

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <memory>
+#include <string>
+#include <vector>
+#include <glm/glm.hpp>
+#include <unordered_map>
+
+#include "typedefs.hpp"
+#include "util/Buffer.hpp"
+#include "graphics/core/Model.hpp"
+
+/// See /doc/specs/vec3_model_spec.md
+namespace vec3 {
+    struct Material {
+        int flags;
+        std::string name;
+    };
+
+    struct Model {
+        std::string name;
+        model::Model model;
+        glm::vec3 origin;
+
+        Model& operator=(Model&&) = default;
+
+        ~Model();
+    };
+
+    struct File {
+        std::unordered_map<std::string, Model> models;
+        std::vector<Material> materials;
+    };
+
+    File load(const std::string_view file, const util::Buffer<ubyte>& src);
+}