Added airlock system to control zones inside-outside, hanger-outside.
Cleaned up some code
Added special case to air pressure for hanger-outside door that has both doors stuck open.

To Do:
add in hanger-inside airlock
add in a holder for hanger-inside-outside
Expand special case to cover inside-outside door that has both doors stuck open.

Add in hanger bay controls

Clean code again.
Document methods

to do:

Add in a memory system using light.color(int x, int x, int x)