Function CreatePlaneMesh( w, h, tileCount_w, tileCount_h, txRepeat_x, txRepeat_y )

Creates a flat plane

• w, h - The width and height of the plane
• tileCount_w, TileCount_h - The number of subdivisions across and down the plane
• txRepeat_x, txRepeat_y - The number of times to repeat the texture across and down the plane