Various fixes: hydroponics, R&D

Fix Protolathe not properly processing sheets (material always null)

Fix Circuit Imprinter, same issue

Add ability for blob to try to damage passable tiles with blob_act()

Add chance of blob to damage floor tiles. (Might be beneficial to add burn damage as burnt floor tiles seem to reduce score)

Fire locks no longer automatically close in presence of the blob if unpowered

Nutrient bottles now automatically delete themselves, if empty, when used on a hydroponics tray

NOTE: blob stuff was pulled out