Enable auto generation for ContentFilter operands and EventFilterResult

There is a working API for event monitoring with filters, so the
operator types for the where clause and the EventFilterResult
should be available by default.

tools/schema/datatypes_minimal.txt

@@ -136,6 +136,7 @@ QueryDataSet
 ParsingResult
 ContentFilterElementResult
 ContentFilterResult
+EventFilterResult
 QueryFirstResponse
 QueryNextRequest
 QueryNextResponse
@@ -173,6 +174,9 @@ DeadbandType
 DataChangeFilter
 EventFilter
 FilterOperand
+ElementOperand
+LiteralOperand
+AttributeOperand
 SimpleAttributeOperand
 EventNotificationList
 EventFieldList