LabMapSend_Safe Class is a singlton class
which provides functions to send integer, real and string value to LabMap safely.
 All these Send-functions in this class will send value in the folloing process:
 
1.Call LabMap API LabMapSendXXX(..) to send the value to the specific handle.
 2.Call LabMap API LabMapWait() to make sure to continue after the operation finished.
3.Call LabMap API LabMapGetXXX(..) to make sure the setValue is the same as the returnValue from the handle.

    When the tryCount bigger than tryCountLimit in each sending process
    A LabMapSendValueFailException will be thrown.