Change API of track revisions to declarative

src/file/core-properties/properties.ts

@@ -34,6 +34,9 @@ export interface IPropertiesOptions {
         readonly [key: string]: IInternalHyperlinkDefinition | IExternalHyperlinkDefinition;
     };
     readonly background?: IDocumentBackgroundOptions;
+    readonly features?: {
+        readonly trackRevisions?: boolean;
+    };
 }
 
 export class CoreProperties extends XmlComponent {

src/file/file.ts

@@ -170,6 +170,12 @@ export class File {
 
             this.hyperlinkCache = cache;
         }
+
+        if (options.features) {
+            if (options.features.trackRevisions) {
+                this.settings.addTrackRevisions();
+            }
+        }
     }
 
     public addSection({