Emergency Insertion - Supermatter Manual.

/obj/item/weapon/book/manual/supermatter_engine
Mapped in Supermatter Manual / pipes fix.

There were multiple straight pipes going the same direction laying over
each other in the engine room that shouldn't have been there.

Placed the Supermatter Engine book on the CE's desk, engineer's table,
and by the rest of the book.  Plenty of copies.
Merge pull request #4015 from Ccomp5950/master

Emergency Insertion - Supermatter Manual.