Presentation mode for notebooks

plugins/cypher-language/build.gradle

@@ -95,6 +95,8 @@ jar {
         attributes "Copyright": "The Polypheny Project (polypheny.org)"
         attributes "Version": "$project.version"
     }
+    duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
+
 }
 java {
     withJavadocJar()

plugins/notebooks/src/main/java/org/polypheny/db/notebooks/model/response/NotebookCellModel.java

@@ -30,6 +30,10 @@ public class NotebookCellModel {
     @SerializedName("cell_type")
     private String cellType;
 
+    @Getter
+    @SerializedName("cell_present")
+    private String presentType;
+
     @Getter
     private String id;
 
@@ -46,6 +50,9 @@ public class NotebookCellModel {
     @Getter
     private List<Object> outputs;
 
+     @Getter
+    private boolean showOutput;
+
 
     public NotebookCellModel( String code ) {
         this( code, new LinkedList<>() );
@@ -54,6 +61,8 @@ public NotebookCellModel( String code ) {
 
     public NotebookCellModel( String code, List<Object> outputs ) {
         this.cellType = "code";
+        this.presentType="skip";
+        this.showOutput=true;
         this.id = UUID.randomUUID().toString();
         this.source = code;
         this.metadata = new CellMetadataModel();