Corrects a number of places where New() did not call ..(), and implements similar changes to attempt to ensure New()/initialize() complete running before qdel() runs.
Cuts down on the number of created items during server start.
- Material comparisons done by name rather than reference equality
- get_material_by_name proc that ensures the material list is initialised, initialising it if neccessary
- holographic materials moved into main material list
- table frames are not a source of infinite metal, and can be deconstructed correctly
- gambling table icons are no longer E-W flipped
