Feature Request: Support extracting non-value fields

[karlkfi]

I would like to be able to :

1. extract the whole data payload as raw json
2. extract the whole secret payload as raw json with metadata, like TTL
3. I would like to be able to specify which field to extract as a raw string
4. I would like to be able to specify multiple fields to extract as keys in a json payload

One way to do this might be to support jsonpath, the way kubectl does.

An example might be DAYTONA_SECRET_JSONPATH_SUFFIX=.data or DAYTONA_SECRET_JSONPATH_SUFFIX=.data.field. If it's a map or list, print json. If it's a string or number, print raw.