* Accuracy fixes for Sand Zone and Labyrinth
And a couple of smaller things as well
* Remove NPCList::remove_by_type (kill_npcs_by_type does the same thing)
Also rename remove_by_event to kill_npcs_by_event for consistency
- Player vs. soft solid NPCs used the wrong collision size
- Curly w/ Nemesis attached too high above the player when standing facing up
- Butes from Bute spawners started following the player at the wrong conditions
- Small pignons in Cemetery never turned around
- Refill stations spawned with alt direction didn't spawn with upward velocity
- Misery blocks spawned with glitchy framerects
- Various issues with possessed Misery
- Various issues with possessed Sue
- Ballos (phase 1) didn't face the player at certain points
- Ballos orbiting eyes (phase 4) didn't spawn smoke when killed
- A part of Ballos phase 2 had the wrong collision type
(apparently this was intentional due to a bug with soft solid collision;
hopefully that's also fixed by these changes?)
- A few missing sound effects during the Ballos fight
- Green devil generators weren't spawning enough enemies
- Balrog missile trails were in the wrong direction
- Core blade projectiles had the wrong check for water collision
- Monster X fish missiles moved at the wrong initial angle
- Sisters fireball attacks shot in the wrong direction
- Sisters missing smoke when shot
- Undead Core missing smoke in some cases
- <DNA'd NPCs spawned the wrong amount of smoke
(fixes Heavy Press lightning despawn for the speedrun ;) )
- Player jumping and falling animations were flipped
- Implemented <MYDxxxx facing towards entity xxxx if xxxx >= 10
(also <MYD0003 should not set the player's direction to down)
- <TRA resets invincibility in freeware (due to starting a new event)
- Bubbler level 1 bullets spawned at the wrong offset
- Bubbler and Machine Gun autofire timers shouldn't reset when fire button is pressed
- Fixed level 3 missile and Super Missile spawn offsets and trajectories
- Nemesis carets spawned at wrong offsets
- Various small typos/logic errors
