Packed

Added perry
Opened door

- Made first ladder jump smoother (less likely to get stuck on slanted block).
- Numerous jumps slightly adjusted to make running without perfing easier.
- Wallstafe onto ladder is now more consistent (you will now always latch on, even without strafing onto the ladder/away from the wall)
- Fixed perf skip in the outside part before the end.
- Ladder longjump in tunnel made easier by giving more room to work with and making the jump slightly shorter.
- Crouch jump onto block in monster room made easier.
- Couple of other, smaller issues fixed.