Update 138 - mini fridge

[p]Just a quick post on the last few small patches.[/p]

[p]added an HBHF device panel with a test button that simulates a custom number of detected players for 5 seconds, this also allows for testing while out of range[/p]
[p]updated workbench costs and added blueprint frags[/p]
[p]patched the unity vulnerability issue when it became available[/p]
[p]signs and photo frames can be rotated 90 degrees on walls[/p]
[p]fixed the "socket occupied" bug with floor stacking[/p]
[p]fixed a bug with planters being blocked by other non-planter deploys on floor below[/p]
[p]switching back to symmetry mode no longer centers view on symmetry center [/p]
[p]fixed the move level tool not having an undo [/p]
[p]removed deployable research costs from part info [/p]