levels: Add missing player 1 start to DM32.
levels: Add missing player 1 start to DM32.

DM32 had deathmatch starts but was missing a player 1 start thing,
making it unplayable in single player mode.

This fixes #93.

jmtd/freedoom,CWolfRU/freedoom,jmtd/freedoom,CWolfRU/freedoom,jmtd/freedoom