MongoDB

.......... [ZBXNEXT-8330] updated with support for default

* commit 'a9cca450eb7ca98b92679aa838470e03ff484835':
  ...G...... [ZBXNEXT-8330] code clean up
  ...G...... [ZBXNEXT-8330] added missing config defaults and updated to correct plugin-support
  .......... [ZBXNEXT-8330] fixed defaults
  .......... [ZBXNEXT-8330] updated with support for default