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 <basicheader.rh>

RESOURCE ONE_STRING r_test_multi2
	{
	text = "text";
	}
RESOURCE SIMPLE_TYPES r_test_multi2_2
	{
	buf = "alternate";
	}