Added dialysis to sleepers

Rapidly removes reagents from patient at the cost of blood.

Ported from Jamini's NEV Unity codebase.
Add/remove beaker from sleeper for dialysis

Redoes the sleeper attackby() prompt to match cryo's style.  Also
removes the millionbeaker in favor of a standard large.
Added dialysis volume. Also numbness message for entering.
Merge pull request #3794 from zekesulastin/dialysis

Adds dialysis functionality to sleepers