Current State

Thanks to APISIX's excellent design, I found that many logging plug-ins support features such as include_req_body, include_req_body_expr,include_resp_body,include_resp_body_expr, such as file-logger,http-logger,loggly,tencent-cloud-cls. However, this feature does not appear in the plug-in documentation or in the plug-in schema definition.

Desired State

Maybe we should add the above.