fixed: DbBase::ConvertTime(tm) should not have been used in this way as it was

(it uses a static buffer)
       now DbTextStream can get tm struct so you don't have to use ConvertTime 


git-svn-id: svn://ttmath.org/publicrep/winix/trunk@662 e52654a7-88a9-db11-a3e9-0013d4bc506e

db/dbbase.h

@@ -38,6 +38,7 @@ public:
 	static int           AssertValueInt(PGresult * r, int row, int col);
 	static unsigned long AssertValueULong(PGresult * r, int row, int col);
 	static unsigned int  AssertValueUInt(PGresult * r, int row, int col);
+	static tm            AssertValueTm(PGresult * r, int row, int col);
 
 	void ClearResult(PGresult * r);
 	long AssertCurrval(const char * table);