Zabbix

...G...... [ZBXNEXT-6958] added external plugin loader for Zabbix agent 2

* commit 'cf2d8de9b3ad96ca60e3f4947a5d9d1cc226fd8d': (32 commits)
  ...G...... [ZBXNEXT-6958] fixed PR comment sub-issues
  ...G...... [ZBXNEXT-6958] fixed windows build
  ...G...... [ZBXNEXT-6958] updated external debug plugins
  ...G...... [ZBXNEXT-6958] fixed race condition with cmd.Wait werr in zbxcmd execute
  ...G...... [ZBXNEXT-6958] fixed sig_child listener failing if child process has no pid
  ...G...... [ZBXNEXT-6958] fixed agent2 exiting if external plugin is stopped
  ...G...... [ZBXNEXT-6958] code clean up
  ...G...... [ZBXNEXT-6958] fixing windows build
  ...G...... [ZBXNEXT-6958] added SIGCHLD handling for loaded plugins
  ...G...... [ZBXNEXT-6958] simplified built-in Path parameter removal from plugin configuration
  ...G...... [ZBXNEXT-6958] added copyright to broker.go
  ...G...... [ZBXNEXT-6958] fixing windows config path
  ...G...... [ZBXNEXT-6958] fixing windows build
  ...G...... [ZBXNEXT-6958] fixing config files for windows
  ...G...... [ZBXNEXT-6958] fixing config files
  ...G...... [ZBXNEXT-6958] code clean up
  ...G...... [ZBXNEXT-6958] fixing sub-issues
  ...G...... [ZBXNEXT-6958] fixed unmarshaling of configuration that was marshalled/unmarshalled as JSON
  ...G...... [ZBXNEXT-6958] changed external plugin related configuration parameter names
  ...G...... [ZBXNEXT-6958] fix build on windows
  ...