Zabbix

...G...PS. [ZBXNEXT-1002] added ability to use c-ares with DNS caching and failover for all DNS requests on Zabbix server, Zabbix proxy and Zabbix agent

* commit 'a06a795674325f482b62e3df9e815cd1c3157b4d': (42 commits)
  ...G...... [ZBXNEXT-10411] fixed renaming of zbxresolver
  ...G...... [ZBXNEXT-10411] allowed building Zabbix agent with c-ares on windows
  .......PS. [ZBXNEXT-1002] fixed warning
  .......PS. [ZBXNEXT-1002] fixed warning
  .......PS. [ZBXNEXT-1002] updated comments
  .D........ [ZBXNEXT-1002] updated function header
  .D........ [ZBXNEXT-1002] updated ChangeLog entry
  ...G...PS. [ZBXNEXT-1002] fixed DNS failover not to happen with simple checks to timeouts when waiting for agent
  ...G...PS. [ZBXNEXT-1002] fixed DNS failover not to happen with simple checks to timeouts when waiting for agent
  ...G...PS. [ZBXNEXT-1002] fixed IPv4 only build to resolve to only IPv4
  .......... [ZBXNEXT-1002] fixed integration test
  .......... [ZBXNEXT-1002] fixed integration test
  .D........ [ZBXNEXT-1002] fixed function header
  .......... [ZBXNEXT-1002] fixed build
  .......... [ZBXNEXT-1002] fixed build
  .......... [ZBXNEXT-1002] removed redundant CFLAGS
  .......... [ZBXNEXT-1002] removed redundant CFLAGS
  .......... [ZBXNEXT-1002] improved integration tests to include IPv6 and ares
  .......... [ZBXNEXT-1002] fixed iwyu warning
  .......... [ZBXNEXT-1002] fixed iwyu warning
  ...