Lesion Tracker Redesign so far

Packages/viewerbase/client/components/studyBrowser/imageThumbnail/imageThumbnail.html

@@ -1,5 +1,6 @@
 <template name="imageThumbnail">
     <div class="imageThumbnail">
+        <div class="imageThumbnailCanvas"></div>
         <div class="imageThumbnailLoadingIndicator thumbnailLoadingIndicator">
             <p>Loading {{percentComplete}}</p>
         </div>
@@ -7,4 +8,4 @@
             <p>Error</p>
         </div>
     </div>
-</template>
+</template>