Changes to Send document message

added the media type application/json for the response with the status 400

added the media type application/json for the response with the status 401

added the media type application/json for the response with the status 404

request body became required

the from request property's minLength was increased from 0 to 1

the to request property's minLength was increased from 0 to 1

the document/link request property format changed from no format to uri

the request property document became optional

added the non-success response with the status 400

added the non-success response with the status 401

added the non-success response with the status 404

the response property id became required for the status 200

the id response's property pattern ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ was added for the status 200