[Feature Request] provide options to retag, send to label, and/or add keys for individual message failures

(check apply)
- [x] read [the contribution guideline](https://github.com/uken/fluent-plugin-elasticsearch/blob/master/CONTRIBUTING.md)

**Is your feature request related to a problem? Please describe.**

We have message which reach the @ERROR label without a clear understanding of why they are there.

Currently, the plugin will send messages to @ERROR for errors like mapper_parsing_exception, etc..
The ERROR label, though, can receive messages from other plugins and/or various forms of failures
It would be beneficial to have these options for individual message failures:
- retag
- send to an alternate label (ie. other than ERROR)
- add keys describing why the message the message ended up in an error state

**Describe alternatives you've considered**
N/A - there appear to be no available options when a message is errored

**Additional context**

N/A