Add implementation of /wot/certified-by and /wot/certifiers-of

ucoinj-core/.gitignore

...c/main/java/io/ucoin/client/core/model/BasicIdentity.java

...main/java/io/ucoin/client/core/model/BlockchainBlock.java

.../java/io/ucoin/client/core/model/BlockchainParameter.java

...re/src/main/java/io/ucoin/client/core/model/Identity.java

...core/src/main/java/io/ucoin/client/core/model/Member.java

...ain/java/io/ucoin/client/core/model/WotCertification.java

...java/io/ucoin/client/core/model/WotCertificationTime.java

...io/ucoin/client/core/model/WotIdentityCertifications.java

...main/java/io/ucoin/client/core/model/WotLookupResult.java

...ain/java/io/ucoin/client/core/model/WotLookupResults.java

...n/java/io/ucoin/client/core/model/WotLookupSignature.java

...rc/main/java/io/ucoin/client/core/model/WotLookupUId.java

...in/java/io/ucoin/client/core/service/AbstractService.java

.../main/java/io/ucoin/client/core/service/ProtocolUrls.java

...rc/main/java/io/ucoin/client/core/service/WotService.java

...core/src/main/resources/i18n/ucoinj-core_en_GB.properties

...core/src/main/resources/i18n/ucoinj-core_fr_FR.properties

...a/io/ucoin/client/core/service/BlockchainServiceTest.java

...est/java/io/ucoin/client/core/service/WotServiceTest.java