Converted to the gradle ecosystem

...rc/test/java/ca/nrc/cadc/ac/xml/UserReaderWriterTest.java

.../java/ca/nrc/cadc/ac/xml/UserRequestReaderWriterTest.java

...ccessControl/src/test/resources/LocalAuthority.properties

cadcTomcat/Dependencies.txt

cadcTomcat/build.gradle

cadcTomcat/build.xml

...rc/main/java/ca/nrc/cadc/tomcat/AuthenticationLookup.java

.../main/java/ca/nrc/cadc/tomcat/CadcBasicAuthenticator.java

...c/main/java/ca/nrc/cadc/tomcat/CadcSSLImplementation.java

...rc/main/java/ca/nrc/cadc/tomcat/CadcSSLSocketFactory.java

...rc/main/java/ca/nrc/cadc/tomcat/CadcX509TrustManager.java

...n/java/ca/nrc/cadc/tomcat/RealmMultiValuedProperties.java

cadcTomcat/src/main/java/ca/nrc/cadc/tomcat/RealmUtil.java

cadcTomcat/src/main/resources/RegistryClient.properties

cadcTomcat/src/test/config/RegistryClient.properties

...est/java/ca/nrc/cadc/tomcat/AuthenticationLookupTest.java

...t/java/ca/nrc/cadc/tomcat/CadcBasicAuthenticatorTest.java