Added support for boolean spectrum

AttributeCombiner.cpp

@@ -866,6 +866,13 @@ void AttributeCombiner::read_dynspec_attributes(Tango::Attribute &attr,DynSpectr
 
 	switch (item->type) {
 
+		case Tango::DEV_BOOLEAN:
+			if(item->isSpectrum)
+				READSPECTRUM<Tango::DevBoolean>(attr,item,arl);
+			else
+				READSCALAR<Tango::DevBoolean, Tango::DevDouble>(attr,item,arl,NAN,NAN);
+			break;
+
 		case Tango::DEV_SHORT:
 			if(item->isSpectrum)
 				READSPECTRUM<Tango::DevShort>(attr,item,arl);