basic rendering for both opengl and vulkan

assets/shaders/quad.vert

@@ -0,0 +1,12 @@
+#version 450
+
+layout(location = 0) in vec2 in_position;
+layout(location = 1) in vec3 in_color;
+
+layout(location = 0) out vec3 frag_color;
+
+void main()
+{
+	gl_Position = vec4(in_position, 0.0, 1.0);
+	frag_color = in_color;
+}