Windows can now be disassembled

- Using a wrench on a deanchored window will deconstruct it
Plasma construction and full window fixes

- Fixed plasma window construction

- Fixed full windows from stopping players and gasses from moving above
them even with density set to 1
Fixes states of onedirectional windows

Will only change the reinforced plasma window. You don't have to pry
them out of a frame before anchoring them anymore.
Merge pull request #372 from Artorp/window-construction-changes

Window construction changes