[Open Assets] Plushima's Asset Collection - PAC 1.3

I made some small updates to a couple of these objects ages ago and forgot to release them here, whoops!

• Fixed a bug in which releasing the jump button after being launched by a flight booster would cut your momentum.
• The flight boosters now properly snap the player to their position. They were always SUPPOSED to do this but i borked it at some point.
• The bottles now actually check your relative Z position before deciding you collided with them. I forgot the mobjcollide hook doesn't do this automatically.

It would also seem that 2.2.10 has made splats a lot more stable, so the splatful versions are now considerably more usable!

I've updated the asset collection to v1.2. Here's what's changed:

• All objects have had the appropriate zonebuilder tags added, to make them a bit easier to work with. Check the main post to see what category everything's in now. Thanks to Inazuma for showing me how to do this!
• Fixed a bug where the flow bubbles wouldn't reset the drowning music.
• Added new physics based bottles from an unreleased project.
• Updated the Flight Boosters with a couple requested features. Special code has been added to make them play nicely with Shadow and Flame the Dragon. You can now vary the strength of the boosters by setting flags- check the main post for details.