conf: parser: improve mongodb parser (#390)
conf: parser: improve mongodb parser (#390)

- Fix field naming (context<->component)
- Add an optional "ms" field that will be the Microseconds the query took to execute (won't be there is it's not a COMMAND)
fluent/fluent-bit,nokute78/fluent-bit,takahasi/fluent-bit,fluent/fluent-bit,fluent/fluent-bit,nokute78/fluent-bit,nokute78/fluent-bit,nokute78/fluent-bit,nokute78/fluent-bit,nokute78/fluent-bit,nokute78/fluent-bit,takahasi/fluent-bit,fluent/fluent-bit,fluent/fluent-bit,takahasi/fluent-bit,takahasi/fluent-bit,fluent/fluent-bit,nokute78/fluent-bit,nokute78/fluent-bit,takahasi/fluent-bit,takahasi/fluent-bit,fluent/fluent-bit,fluent/fluent-bit,nokute78/fluent-bit,nokute78/fluent-bit,nokute78/fluent-bit,fluent/fluent-bit,takahasi/fluent-bit,takahasi/fluent-bit,fluent/fluent-bit,fluent/fluent-bit,fluent/fluent-bit