Update on TML drawing : first handling of a few ops of TML activity diags

src/main/java/tmltranslator/TMLActivityElement.java

src/main/java/tmltranslator/TMLModeling.java

src/main/java/ui/DrawerTMLModeling.java

src/main/java/ui/ad/TADChoice.java

src/main/java/ui/tmlad/TMLADActionState.java