separation regulated gene and regulated gene

src/main/java/model/events/SimulationEvent.java

src/main/java/model/genes/BasicGene.java

src/main/java/model/genes/ConstantRegulatedGene.java

src/main/java/model/genes/Gene.java

src/main/java/model/genes/RegulatedGene.java

src/main/java/model/genes/RegulatoryGene.java

src/main/java/model/network/RegulatoryNetwork.java

...main/java/model/network/RegulatoryNetworkDataManager.java

src/main/java/model/regulators/Regulator.java

src/test/java/model/genes/ConstantRegulatedGeneTest.java