databases/cego: update 2.35.4 -> 2.35.8

• Fix in CegoQueryHelper::aggregateTuple, in case of min-Aggregation, wrong results may occur, if null values have to be treated. Since null value handling is now treated inside CegoFieldValue, some code here was obsolete.
• Fix in CegoPredDesc for INSUB and NOTINSUB constructor + clone method. There was a confusing with the isNegated flag which has been corrected ( also in using class CegoAction ) The wrong negation might lead to wrong query result for views using subselect with in or not in subselects
• Bug fix in CegoDistCursor::getTuple, for the LEFTOUTER case and moreRight conditions, the right table cursor was called double time ( native and with nextRight ). The native call has to be removed since this may lead to strange effects actually just observed for mingw compiles

Submitted by: Bjoern Lemke <lemke@lemke-it.com>