Add batch drawing of filled rectangles with count > GLES2_MAX_VERTICES.
Add batch drawing of filled rectangles with count > GLES2_MAX_VERTICES.

rmg-nik/sdl_batch,rmg-nik/sdl_batch,rmg-nik/sdl_batch,rmg-nik/sdl_batch,rmg-nik/sdl_batch,rmg-nik/sdl_batch,rmg-nik/sdl_batch,rmg-nik/sdl_batch