Zabbix

...G...PS. [ZBXNEXT-6840] improved protocol to support Zabbix proxy configuration of size up to 16 GB; improved performance and memory usage by freeing uncompressed data as fast as possible and compressing before connection

Merge in ZBX/zabbix from feature/ZBXNEXT-6840-5.0 to release/5.0

* commit 'ceb43636564dd55e2f5ab6fec5910f4ffb641050': (29 commits)
  .D........ [ZBXNEXT-6840] updated ChangeLog entry
  .......P.. [ZBXNEXT-6840] style fix
  ...G...PS. [ZBXNEXT-6840] fixed sending of large data
  ...G...PS. [ZBXNEXT-6840] removed unused defines
  ...G...PS. [ZBXNEXT-6840] silenced warning
  ...G...PS. [ZBXNEXT-6840] redufixed warning
  ...G...PS. [ZBXNEXT-6840] reduced connection time and memory usage by compressing before connection and freeing uncompressed data faster
  ...G...PS. [ZBXNEXT-6840] reduced connection time and memory usage by compressing before connection and freeing uncompressed data faster
  ...G...PS. [ZBXNEXT-6840] reduced connection time and memory usage by compressing before connection and freeing uncompressed data faster
  ...G...PS. [ZBXNEXT-6840] reduced connection time and memory usage by compressing before connection and freeing uncompressed data faster
  ...G...PS. [ZBXNEXT-6840] reduced connection time and memory usage by compressing before connection and freeing uncompressed data faster
  ...G...PS. [ZBXNEXT-6840] reduced connection time and memory usage by compressing before connection and freeing uncompressed data faster
  ...G...PS. [ZBXNEXT-6840] reduced connection time and memory usage by compressing before connection and freeing uncompressed data faster
  ...G...PS. [ZBXNEXT-6840] simplified code and error messages
  ...G...PS. [ZBXNEXT-6840] style fix
  ...G...PS. [ZBXNEXT-6840] fixed warning message
  ...G...PS. [ZBXNEXT-6840] style fix
  ...G...PS. [ZBXNEXT-6840] fixed warnings and handling data over 1GB
  ...G...PS. [ZBXNEXT-6840] fixed warnings and handling data over 1GB
  ...G...PS. [ZBXNEXT-6840] fixed warnings and handling data over 1GB
  ...