Custom blocksToAvoid penalty

## Custom blocksToAvoid penalty
Being able to customise a blocks penalty value as an extension to blocksToAvoid

## Settings
- You can add a block penalty by specifying blocksToAvoid [block] [number]
- Default / max would be COST_INF by not specifying a number
- Min value would be 1.000 which would remove the block from the blocksToAvoid list

## Context
Pathing through water would have a higher cost because it is slower (as baritone hovers rather than swims through water) than walking on land.

Having a customisable penalty means it could walk on that block to reach its goal as a last resort instead of failing on the spot. (example being simply adding it to blocksToAvoid would not find a path if that was the only option)

Another one could be setting it to preferring soul sand if wearing soul speed boots

## Final checklist
- [x] I know how to properly use check boxes
- [x] I have not used any OwO's or UwU's in this issue.