Update on SysMLV2 text: smd and constraints

modeling/DIPLODOCUS/testBusSlice.xml

src/main/java/ui/sysmlv2/JFrameSysMLV2Text.java

src/main/java/ui/sysmlv2/JPanelForEdition.java

src/main/java/ui/sysmlv2/SysMLV2Actions.java

src/main/java/ui/sysmlv2/TextBar.java