Zabbix

A......... [ZBX-27236] improved performance of the event.get and problem.get methods when using the "suppressed" and "symptom" options

* commit 'af387d83f024ca114730ff80f3d935338a92a2dd':
  .D........ [ZBX-27236] added ChangeLog entry
  A......... [ZBX-27236] added several coding style improvements; thanks to vmaksimov
  A......... [ZBX-27236] improved performance of the event.get and problem.get methods when using the "suppressed" and "symptom" options
  A......... [ZBX-27236] fixed the output of the event.get method when using a filter by the cause_eventid field together with the enabled countOutput and groupBy options
  A......... [ZBX-27236] fixed the loss of DISTINCT when JOIN options are added in child applyQueryOutputOptions methods only