Biohazard

This map was created by skippymurphy and repaired by porkchops4lunch. 8 years ago we were teased by this map on Moddb. At some point the map was accidentally included with a content update before being removed. Anyone who had tried to play it immediately noticed it was in a broken and unfinished state. For reasons I can't remember, the map was discontinued and remained dormant up until I decided to perform a salvage operation. This fix is based on nmo_biohazard_v3 which I suspect was not the most up to date version. I encountered many issues. - A significant amount of decals where not assigned to any brush faces so I had to manually re-apply them all. - There was no zombie spawn brushes and no navigation which had to be included and generated. - There was no item or weapon spawns. - Some puzzles were prone to crashing, some puzzle pieces were in their wrong location. - Lots of quality of life adjustments like the railings not having collision, and the fountain being untextured. - There are some dev textures and placeholders that I decided not to touch. I have been hyped for this map since it was first revealed and I tried to repair it without doing it any injustice. It's clear skippymurphy put an INSANE amount of effort into this map and I felt it was a great shame for nobody to experience it. Especially RE2 fans such as myself. Thanks to xkarma123x for adjustments made to the fountain.