Update property framework and add new unit tests2

...eu/europa/ec/edelivery/smp/config/DatabaseProperties.java

...uropa/ec/edelivery/smp/config/PropertyInitialization.java

...eu/europa/ec/edelivery/smp/data/dao/ConfigurationDao.java

.../java/eu/europa/ec/edelivery/smp/data/model/DBDomain.java

...uropa/ec/edelivery/smp/data/ui/enums/SMPPropertyEnum.java

...uropa/ec/edelivery/smp/services/ConfigurationService.java

...uropa/ec/edelivery/smp/services/ui/UIKeystoreService.java

...java/eu/europa/ec/edelivery/smp/sml/SmlClientFactory.java

...ain/java/eu/europa/ec/edelivery/smp/sml/SmlConnector.java

.../java/eu/europa/ec/edelivery/smp/utils/SecurityUtils.java

...a/ec/edelivery/smp/config/PropertyInitializationTest.java

...a/ec/edelivery/smp/data/dao/ConfigurationDAOImplTest.java

...entFactoryAuthenticationByClientCertFromKeystoreTest.java

...u/europa/ec/edelivery/smp/sml/SmlConnectorDomainTest.java

...a/eu/europa/ec/edelivery/smp/utils/SecurityUtilsTest.java

...a/ec/cipa/smp/server/security/SignatureValidatorTest.java

.../europa/ec/edelivery/smp/config/PropertiesTestConfig.java

...a/eu/europa/ec/edelivery/smp/ui/KeystoreResourceTest.java