wxGUI/menudata: add g.gui.iclass

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@54514 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/xml/menudata.xml

@@ -2783,6 +2783,7 @@
               <help>Generates spectral signatures by allowing the user to outline training areas.</help>
               <keywords>imagery,classification,supervised</keywords>
               <handler>OnIClass</handler>
+              <command>g.gui.iclass</command>
             </menuitem>
             <separator />
             <menuitem>