[IDC-1939] Debug Dialog part 1 (#2011)

* WIP debug dialog

* Rename the p10 downloader extension to debugger extension, add button to toolbar. Deactivate it by default.

* Fix unit tests

platform/viewer/src/appExtensions/GenericViewerCommands/index.js

@@ -2,6 +2,9 @@ import commandsModule from './commandsModule.js';
 
 export default {
   id: 'generic-viewer-commands',
+  get version() {
+    return window.version;
+  },
   getCommandsModule({ commandsManager }) {
     return commandsModule({ commandsManager });
   },