Make ocfl-java explicitly ignore the custom extensions that we use, to avoid the warnings

which clutter the log for no good reason.

Author: janvanmansum

src/main/java/nl/knaw/dans/datavault/core/OcflRepositoryProvider.java

@@ -151,6 +151,7 @@ public void start() {
         try {
             ocflRepository = new OcflRepositoryBuilder()
                 .unsupportedExtensionBehavior(UnsupportedExtensionBehavior.WARN)
+                .ignoreUnsupportedExtensions(Set.of("object-version-properties", "property-registry", "packaging-format-registry"))
                 .defaultLayoutConfig(layoutConfig)
                 .inventoryCache(null)
                 .storage(ocflStorage)