implmented the CMTS emulator, added PCMMWorkflowTest.java for testing and more

implemented the CMTS emulator
added junit test class PCMMWorkflowTest.java for testing the whole workflow.
added PCMMChanel to enable send/receive timeout
fixed bugs in  the PS and more
for example using CMTS.java with PS see Main.java under src/test/java/
for the junit test for the workflow see PCMMWorkflowTest.java  under src/test/java/