Ported the obj parser.

include/util/array_hash.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <array>
+#include <memory>
+
+template<class T, size_t N>
+struct std::hash<std::array<T, N>>
+{
+	auto operator() (const std::array<T, N>& key) const {
+		auto hasher = std::hash<T>{};
+		auto result = std::size_t{};
+		for (const auto& element : key)
+		{
+			result = result * 31 + hasher(element);
+		}
+		return result;
+	}
+};