[Open Assets] DS Delfino Square V3.0

Made the main cut on the shopping section slightly harder to take and to kill the item you're holding after passing it (doesn't kill rocket, star effect, growth effect or hyu effect)
Made the shopping part past the cut shorter, so the main cut is less strong
Made the main cut get blocked off at lap 3 in Multiplayer, in Singleplayer for TA it stays open
Made the boost past the shopping karts more consistent, and easier to hit
Made the trees past the draw bridge be springs, so you could try stuff with them
Made the shine sprite on the fountain a Thing, so it looks less weird on certain angles
Fixed the lap 3 music only triggering for last place only

-Fixed 2 checkpoints missing the triggers
-Made the dashpanels easier to hit at the start
-Moved the first set of itemboxes so you have a bit more time to react if you have shoes for the cut
-Moved a shopping kart to try and make the ending slightly less cut heavy (still is, just not as much)

- Added some shopping stands at the start of the race
- Added 2 new boxes behind one of the new stands
- Added 2 more boxes in the final set

-Added more checkpoints
-Added signs
-Added breakable boxes in the shopping area
-Added a new area after the roundabout with a new cut (inspiration from Charlie's Café from updating delfino square)