New getNextTimeout attribute required by HLTMPPU for the selection of the timeout value for the new tryGetNextUntil call.
Added the getNextTimeout attribute to be used by the HLTMPPU to set the value of the tryGetNextUntil function timeout. Required for Jira ADHI-4728. To be included in the next release (requires the change performed in HLTPUDal, and it is required by the new change in HLTMPPU)