[DoubleAgentValidator] Schema verification
Added schema verification to avoid undefined error. Added too a extra method DoubleAgentValidatorV2.getSchemas(), to get all schemas.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Added schema verification to avoid undefined error. Added too a extra method DoubleAgentValidatorV2.getSchemas(), to get all schemas.