Runtime should support openmessaging-java-1.0.0-alpha #9
Description
Openmessaging-java-0.3.1-alpha lack of some key api reasons。
For example，Message has no offset information，
Consumer can not poll messages in bulk。
At the same time， openmessaging-java-1.0.0-alpha can resolve above problem，
So runtime should support openmessaging-java-1.0.0-alpha。