BG2 Door Fixes

Pre-Fixpack for each area is on the left, corrected by Fixpack on the right. Two different fixes are shown here. In Firkraag's maze (second image, bottom row) and the Spellhold maze (third image, top row) the clickable area for the opened door did not match the actual door graphics, so the region was redrawn correctly. In the other six areas, the opened door had no clickable region at all, meaning it could not be selected and closed. In these cases, a clickable region is added.