add new components (test) (eln)

...java/ui/eln/sca_eln_sca_de/ELNComponentCurrentSinkDE.java

...va/ui/eln/sca_eln_sca_de/ELNComponentCurrentSourceDE.java

...java/ui/eln/sca_eln_sca_de/ELNComponentVoltageSinkDE.java

...va/ui/eln/sca_eln_sca_de/ELNComponentVoltageSourceDE.java

...main/java/ui/window/JDialogELNComponentCurrentSinkDE.java

...in/java/ui/window/JDialogELNComponentCurrentSourceDE.java

...main/java/ui/window/JDialogELNComponentVoltageSinkDE.java

...in/java/ui/window/JDialogELNComponentVoltageSourceDE.java