初始化BPM

delete from BPMInstProcSteps;
delete from BPMInstRouting;
delete from BPMInstTasks;
delete from BPMSysMessagesFailed;
delete from BPMSysMessagesSucceed;
delete from YZAppAttachment;
delete from YZAppCommunication;
delete from YZAppCommunicationRead;
delete from YZSysMobileDevice;