added two new components in eln

modeling/can.xml

modeling/sin_source_sink.xml

src/main/java/ui/ActionPerformer.java

src/main/java/ui/TGComponentManager.java

src/main/java/ui/TGUIAction.java

src/main/java/ui/eln/ELNDiagramToolBar.java

...va/ui/eln/sca_eln_sca_tdf/ELNComponentCurrentSinkTDF.java

...va/ui/eln/sca_eln_sca_tdf/ELNComponentVoltageSinkTDF.java

src/main/java/ui/util/IconManager.java

...ain/java/ui/window/JDialogELNComponentCurrentSinkTDF.java

...ain/java/ui/window/JDialogELNComponentVoltageSinkTDF.java

src/main/resources/ui/util/elntdfisink.gif

src/main/resources/ui/util/elntdfvsink.gif