added models

faircommons-services/common/src/main/lombok/eu/fairkom/faircommons/common/model/HashCode.java

+package eu.fairkom.faircommons.common.model;
+
+public class HashCode {
+    private String algorithm;
+    private String hexValue;
+}

faircommons-services/common/src/main/lombok/eu/fairkom/faircommons/common/model/IpfsEntry.java

+package eu.fairkom.faircommons.common.model;
+
+public class IpfsEntry {
+    private String cid;
+    private String path;
+}

faircommons-services/common/src/main/lombok/eu/fairkom/faircommons/common/model/StorageOption.java

+package eu.fairkom.faircommons.common.model;
+
+public class StorageOption {
+
+}

faircommons-services/common/src/main/lombok/eu/fairkom/faircommons/common/model/Work.java

+package eu.fairkom.faircommons.common.model;
+
+import java.time.LocalDateTime;
+import java.time.ZonedDateTime;
+import java.util.List;
+
+public class Work {
+    private String type;
+    private String title; //immutable
+    private String description;
+    private List<String> tags;
+    private String language;
+    private ZonedDateTime creationDate; //immutable
+    private ZonedDateTime registrationDate; //immutable
+
+    private String registrar; //keycloak userId, immutable
+    private String publisher; //immutable
+    private List<String> attribution;
+
+    private String identifier;
+
+
+    private String fileUrl;
+    private String filename;
+    private String visibility; //PRIVATE, PUBLIC
+    private HashCode hashFile; //immutable
+    private HashCode hashMeta; //immutable
+    private IpfsEntry ipfsFile; //immutable
+    private IpfsEntry ipfsMeta; //immutable
+    private String status;
+
+}

faircommons-services/common/src/main/lombok/eu/fairkom/faircommons/common/model/WorkCreateView.java

+package eu.fairkom.faircommons.common.model;
+
+import java.time.ZonedDateTime;
+import java.util.List;
+
+public class WorkCreateView {
+    private String type;
+    private String title;
+    private String description;
+    private List<String> tags;
+    private ZonedDateTime creationDate;
+    private String registrar;
+    private String filename;
+    private WorkVisibility visibility;
+    private StorageOption storageOption;
+}

faircommons-services/common/src/main/lombok/eu/fairkom/faircommons/common/model/WorkView.java

+package eu.fairkom.faircommons.common.model;
+
+public class WorkView {
+}

faircommons-services/common/src/main/lombok/eu/fairkom/faircommons/common/model/WorkVisibility.java

+package eu.fairkom.faircommons.common.model;
+
+public enum WorkVisibility {
+    PUBLIC, PRIVATE
+}