Doom WAD - Where's All the Data

Basically just a list of offsets/size/name8 to file lumps.

• mock files for IWAD (internal) mock-i.wad and PWAD (patch) mock-p.wad
• tiny.wad file with no lump
• mini.wad with a single dummy lump
• room.wad a small square room generated with Slade, tested with GZDoom