- distance is INFINITE, 0, or a positive integer based on get_dist() between
the examiner and examinee's turfs when they are on the same Z. When the
examiner is dead or a ghost, distance is always 0.
- also updates /examine( implementations to use it!
- adds w_class_to_name proc for reusing "It is a X item." examine behavior.
* Semiport of Allow_Spacemove from Bay.
* Porting flying robots from Bay.
* Converting platforms to an alt title of Robot.
* Converting existing modules to new proc flow.
* Cleaning up jetpack code for robots.
* Making flyers and platforms buildable.
* Debugging/refining robots port.
* Reverting some unneeded spacemove changes.
* Refining/debugging bots.
* Removing Bay subtypes, adding flying subtypes of existing modules.
* Icon rework for flying robots.
* Working commit for flying borgs PR.
Spookerton