Adding for loop in CP diagrams

src/tmltranslator/tmlcp/TMLCPChoice.java

src/tmltranslator/tmlcp/TMLCPForLoop.java

src/ui/MainGUI.java

src/ui/TGComponentManager.java

src/ui/TGUIAction.java

src/ui/tmlcp/TMLCPChoice.java

src/ui/tmlcp/TMLCPForLoop.java

src/ui/tmlcp/TMLCPToolBar.java