Replace explicit matrix uniforms with single ubo

shader/texture/simple.vert

@@ -2,7 +2,6 @@
 layout (location = 0) in vec2 pos;
 layout (location = 1) in vec2 texPos;
 out vec2 vTexPos;
-
 void main()
 {
   gl_Position = vec4(pos,0,1);