BDK ability to turn on and off the body tag payload. For datafeed read and create calls.

[symphony-ming]

Feature Request

Description of Problem:

Customer encountered an issue with their bot on the 24-Sept, where their BOT unable to create any datefeed.
There was an issue datafeed service where there was some orphan value left in the dynamoDB. Preventing datafeed to be created/used.
However when they create the datafeed without the body tag payload, the datafeed works fine.
Customer had to rollback to datafeed v1 completely and wait for us to remove the orphan value in the dynamoDB

Potential Solutions:

Currently BDK includes that body tag payload as a default.
A flag in the config to toggle on/off the body payload would be useful. So customer doesnt need to switch to datafeed v1 completely.