Zabbix

...G.....T [ZBX-21296] updated ORACLE plugin, ORACLE ODBC and agent 2 template documentation grant select variables and added new grant

* commit '77d6fb007d382de52b49ab80a5788f1446cffbb2':
  .......... [ZBX-21296] edited Readme.md
  .......... [ZBX-21296] edited Readme.md
  .......... [ZBX-21296] edited Readme.md
  .......... [ZBX-21296] updated readme based on PR comments
  ...G...... [ZBX-21296] updated ORACLE plugin README grant select variables and added no grant
  .......... [ZBX-21296] added changelog
  .........T [ZBX-21296] updated documentation in Oracle odbc and agent 2 templates