Adding auto connect of signals

modeling/AVATAR/CoffeeMachine_Avatar.xml

src/main/java/ui/TDiagramPanel.java

src/main/java/ui/avatarbd/AvatarBDBlock.java

src/main/java/ui/avatarbd/AvatarBDPanel.java

src/main/java/ui/avatarbd/AvatarBDPortConnector.java

src/main/java/ui/avatarbd/AvatarBDToolBar.java