Made SMES terminals able to be constructed and deconstructed.

Way to do:
-Open maintenance hatch with screwdriver.
-Apply cables (at least 10)/wirecutter.

Code is modified and corrected /vg/ code.
Nitpickity addressed: Added span classes.
Merge pull request #5126 from faerindel/smes_maketerminal

Made SMES terminals able to be constructed and deconstructed.