Changes to Atomically commit a batch of mixed table operations

added the optional property context to the response with the 200 status

added the optional property context to the response with the 400 status

added the optional property context to the response with the 401 status

added the optional property context to the response with the 403 status

added the optional property context to the response with the 404 status

added the optional property context to the response with the 409 status

added the optional property context to the response with the 503 status

added the optional property context to the response with the 5XX status

added the optional property results/items/create_table_version/context to the response with the 200 status

added the optional property results/items/declare_table/context to the response with the 200 status

added the optional property results/items/delete_table_versions/context to the response with the 200 status

added the optional property results/items/deregister_table/context to the response with the 200 status

added the new optional request property operations/items/create_table_version/branch

added the new optional request property operations/items/delete_table_versions/branch

endpoint added