Realistic walking, pathfinding

Realistic walking/pathfinding means:
- [ ] normally try to find route with only going 1 block up or falling max. 3 down (no fall damage)
- [ ] jump across short gaps
- [ ] if possible, walk diagonally instead of axis-aligned
- [ ] bonus: if no "good enough" path is found, consider taking a little damage for faster route

**sprinting:**
- [ ] sprint to jump over larger gaps
- [ ] sprint-jump if enough saturation to be faster

**falling:**
- [ ] avoid fall damage
- [ ] take walking speed while falling into consideration (falling diagonally)

**environment interaction:**
- [ ] use ladders and vines
- [ ] open doors
- [ ] mine/place blocks

**enchantments, effects:**
- [ ] include Feather Falling buff if present to increase fall height
- [ ] if jump boost status effect is active, take higher jumping into consideration