Fix bug 11274. Don't hold a lock on projectInfoMap for so long, fetching interesting mmp/bld.inf/etc list outside the lock instead. Add a temporary resource listener just in case resources are modified when we're not looking (I never saw this fire).

#include <bitmasks.rh>

RESOURCE BITMASK r_test_bitmasks_children
	{
	numbers = 0;
	colors = EAknBlack;
	}