BedBreakBegone

Fixes and alleviates nonsense "Your bed was obstructed" errors.

Replaces Minecraft's checks for respawning at a bed with more sane methods, fixing issues such as not being able to respawn if there are slabs, signs, glowstone, glass, etc. around the bed.
If the bed is *actually* fully covered in blocks you can still get the obstruction error, just not randomly for nonsense reasons.