Add method to fetch profile projection for an annotation

package.json

@@ -1,6 +1,6 @@
 {
     "name": "cytomine-uliege-js-client",
-    "version": "1.0.0-rc.2",
+    "version": "1.1.0",
     "description": "Client to communicate with Cytomine API in javascript. For more information about Cytomine, go to http://www.cytomine.org.",
     "browser": "dist/cytomine-client.min.js",
     "unpkg": "dist/cytomine-client.min.js",

src/models/annotation.js

@@ -105,6 +105,30 @@ export default class Annotation extends Model {
     return this._profile;
   }
 
+  /**
+   * Get the projections of the annotation profile, if available.
+   * 
+   * @param {boolean} cache True if the result must be cached in the annotation object.
+   * 
+   * @returns {Object} The annotation profile projection
+   */
+  async fetchProfileProjections(cache=false) {
+    if(this.isNew()) {
+      throw new Error('Cannot get profile for an annotation with no ID.');
+    }
+
+    if (this._profileProjections && cache) {
+      return this._profileProjections;
+    }
+    else {
+      let {data} = await Cytomine.instance.api.get(`${this.callbackIdentifier}/${this.id}/profile/projections.json`);
+      if (cache) {
+        this._profileProjections = data;
+      }
+      return data;
+    }
+  }
+
   /**
    * Record an action performed on the annotation
    *