BooBoo 3.0.10

• Fix insane amount of extra drawing in custom_black_bars example (there was a 2 * scr_w + 2 * scr_h times too many images being drawn due to a typo)
• Optimisations. I get an extra 100 FPS in CoinHunt on i5 9500T/Intel UHD 630
• Add json_remove to remove nodes
• Add resize_vertex_cache in case you are drawing huge amounts of geometry and want to avoid cache auto-resizing
• Make set_viewport like set_scissor, taking buffer coordinates

EDIT: Yes, it was drawing 840,000 images at 1280×720 instead of only the 210 needed. lol.