rename ELNComponent to ELNPrimitiveComponent (eln)

src/main/java/ui/eln/ELNConnector.java

src/main/java/ui/eln/ELNPrimitiveComponent.java

src/main/java/ui/eln/sca_eln/ELNComponentCapacitor.java

...ain/java/ui/eln/sca_eln/ELNComponentIdealTransformer.java

.../ui/eln/sca_eln/ELNComponentIndependentCurrentSource.java

.../ui/eln/sca_eln/ELNComponentIndependentVoltageSource.java

src/main/java/ui/eln/sca_eln/ELNComponentInductor.java

src/main/java/ui/eln/sca_eln/ELNComponentResistor.java

...ain/java/ui/eln/sca_eln/ELNComponentTransmissionLine.java

...n/sca_eln/ELNComponentVoltageControlledCurrentSource.java

...n/sca_eln/ELNComponentVoltageControlledVoltageSource.java

...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

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

.../ui/eln/sca_eln_sca_tdf/ELNComponentCurrentSourceTDF.java

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

.../ui/eln/sca_eln_sca_tdf/ELNComponentVoltageSourceTDF.java