feat: DicomTagBrowser tool (#2975)

* init bring v2 tag browser to v3, some small bug fixes

* moved tag browser to default extension, altered style to be more OHIF-v3-like

Co-authored-by: Michael Andersen <Michael.Andersen@rmp.uhn.ca>

modes/longitudinal/src/toolbarButtons.js

@@ -377,6 +377,19 @@ const toolbarButtons = [
           ],
           'Reset'
         ),
+        _createActionButton(
+          'TagBrowser',
+          'list-bullets',
+          'Dicom Tag Browser',
+          [
+            {
+              commandName: 'openDICOMTagViewer',
+              commandOptions: {},
+              context: 'DEFAULT',
+          },
+          ],
+          'Dicom Tag Browser'
+        ),
         _createActionButton(
           'rotate-right',
           'tool-rotate-right',