preparations for shaders

shader.h

@@ -0,0 +1,22 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+class gl_shader
+{
+public:
+	GLuint id;
+
+	gl_shader();
+	gl_shader(std::string);
+};
+
+class gl_program
+{
+	GLuint id;
+public:
+	gl_program() = default;
+	gl_program(std::vector<gl_shader>);
+
+	void use();
+};