[READY]Adds a Tutorial area for three jobs

This adds the Tutorial Z-level, which you can access via an observer verb.

This is a Z-level devoted to being an area new players can use to learn more complex and freeform game mechanics, such as Chemistry, or learn the math behind Telescience.

It has:
Toxins Lab, with Canister Generator.

Chemistry Lab, with Assembly Generator.

Telescience lab, with teleporters with maxed out power capacity and crystal amounts so you can learn to telescience unrestricted. It, however, can only teleport around on the 7th z-level.

A few random spots out in the z-level for Telescience to target and attempt to reach, that have GPSes, to challenge your mathematics skill to grab all of them.

This also adds the Enter Thunderdome verb. This verb will spawn you on the thunderdome as a human so that you can have a fight with other ghosts.

PS. DME change is required, I ticked toxinsdispenser.dm