WIP: new OneTimeToken realm

src/main/java/caosdb/server/CaosAuthenticator.java

src/main/java/caosdb/server/CaosDBServer.java

...java/caosdb/server/accessControl/AuthenticationUtils.java

...a/caosdb/server/accessControl/ConsumedInfoCleanupJob.java

...osdb/server/accessControl/OneTimeAuthenticationToken.java

...rver/accessControl/SelfValidatingAuthenticationToken.java

src/main/java/caosdb/server/accessControl/SessionToken.java

src/main/java/caosdb/server/permissions/EntityACL.java

.../caosdb/server/resource/AbstractCaosDBServerResource.java

src/main/java/caosdb/server/resource/ScriptingResource.java

src/main/java/caosdb/server/utils/Utils.java

...test/java/caosdb/server/authentication/AuthTokenTest.java