Adding Structure to support CP and SD in DIPLODOCUS

src/tmltranslator/DIPLOElement.java

src/tmltranslator/TMLCP.java

src/tmltranslator/TMLMapping.java

src/tmltranslator/tmlcp/TMLCPChoice.java

src/tmltranslator/tmlcp/TMLCPElement.java

src/tmltranslator/tmlcp/TMLCPFork.java

src/tmltranslator/tmlcp/TMLCPJoin.java

src/tmltranslator/tmlcp/TMLCPJunction.java

src/tmltranslator/tmlcp/TMLCPRefCP.java

src/tmltranslator/tmlcp/TMLCPRefSD.java

src/tmltranslator/tmlcp/TMLCPSection.java

src/tmltranslator/tmlcp/TMLCPStart.java

src/tmltranslator/tmlcp/TMLCPStop.java

src/tmltranslator/tmlcp/TMLSDAction.java

src/tmltranslator/tmlcp/TMLSDElement.java

src/tmltranslator/tmlcp/TMLSDInstance.java

src/tmltranslator/tmlcp/TMLSDMessage.java

src/tmltranslator/tmlcp/TMLSDMessageManipulation.java

src/tmltranslator/tmlcp/TMLSDReceiveMessage.java

src/tmltranslator/tmlcp/TMLSDSection.java