Implemented Radiation system and enemy NPC's.

I added a radiation system. This means that when you are in a certain
room you lose some of your hit points. I also added 3 NPC's with
various attacks and damage points. They attack you every turn. I also
implemented a few new rooms but they aren't full with descriptions use.
4th Version. Added the final room and a few other ones. No description for the final room.

I made it so that you must engage the enemy NPC's in combat in order to
get the key to the final room. This took quite some time. I also made
the description of the armory change when you get the weapon and some
other rooms.
Added another puzzle, mines. I also added stimpaks which heal your health.

The next puzzle I added was mines. I added one in the stairwell. It
prevents you from moving on until you disarm it. I also added stimpak,
which heals you.
Fixed a few bugs. Added NPC Pinkerton. Added Mysterious Hotel Room. Made stimpaks work.

There was a point where the stimpak could be used infinitely. But I
made it be removed from play. I added the lab room. I added NPC
pinkerton. I added the description. Added Mysterious Hotel room.
Made ending better.

I made it so you can only take 1 of the items that will affect the
ending.
FIxed the corridor

It unlocks correctly.