Zabbix

..F....... [ZBX-21255] added support of the fmtnum() function for {ITEM.VALUE}, {ITEM.LASTVALUE} and expression macros

* commit '6a462562f9d7052e08dbeda69082da822da03e55':
  .D........ [ZBX-21255] fixed typo
  ..F....... [ZBX-21255] fixed deprecated ${var} string interpolation
  ..F....... [ZBX-21255] fixed PHPDoc
  ..F....... [ZBX-21255] fixed calls of getMacroPositions() static method
  ..F....... [ZBX-21255] made new funtionality compatible with PHP 7.4
  .D........ [ZBX-21255] moved ChangeLog entry to the proper place
  .D........ [ZBX-21255] added ChangeLog entry
  ..F....... [ZBX-21255] added resolving of macro functions for expression macros
  ..F....... [ZBX-21255] refactored the getItemFunctionalValue() function to return value without post-processing
  ..F....... [ZBX-21255] refactored input parameters for the calcMacrofunc() method
  ..F....... [ZBX-21255] moved "function" and "parameter" into "macrofunc" object in the old code same way as it implemented in expression macros
  ..F....... [ZBX-21255] added extracting of expression macros with macro functions
  ..F....... [ZBX-21255] made some methods static
  ..F....... [ZBX-21255] moved macro functions calculation into a separated method
  ..F....... [ZBX-21255] moved inline duplicated code to the C10FunctionParser::getParams() method
  ..F....... [ZBX-21255] added support of options for CExpressionMacroFunctionParser
  ..F....... [ZBX-21255] added support of the fmtnum() function for the {ITEM.VALUE} and {ITEM.LASTVALUE} macros
  ..F....... [ZBX-21255] moved resolving of the regsub() and iregsub() macro functions for a separate function