Separating drawer for Avatar specification

modeling/AVATAR/AirbusDoor.xml

src/main/java/ui/AvatarDesignPanelTranslator.java

src/main/java/ui/AvatarPanelDrawer.java

src/main/java/ui/GTURTLEModeling.java

src/main/java/ui/TDiagramPanel.java

src/main/java/ui/avatarsmd/AvatarSMDConnector.java