Add hotkeys for saving and loading displays

- this was a request from a user through the beta reporting form
- used 1, 2, 3, because l, o, s, were all used

cave/com.raytheon.uf.viz.d2d.ui/plugin.xml

@@ -1452,6 +1452,24 @@
             schemeId="com.raytheon.viz.ui.cave.scheme"
             sequence="M1+H">
       </key>
+      <key
+            contextId="com.raytheon.uf.viz.d2d.ui"
+            commandId="com.raytheon.viz.ui.loadSerialized"
+            schemeId="com.raytheon.viz.ui.cave.scheme"
+            sequence="M1+1">
+      </key>
+       <key
+            contextId="com.raytheon.uf.viz.d2d.ui"
+            commandId="com.raytheon.viz.ui.saveProcedure"
+            schemeId="com.raytheon.viz.ui.cave.scheme"
+            sequence="M1+2">
+      </key>
+       <key
+            contextId="com.raytheon.uf.viz.d2d.ui"
+            commandId="com.raytheon.viz.ui.saveBundle"
+            schemeId="com.raytheon.viz.ui.cave.scheme"
+            sequence="M1+3">
+      </key>
       <key
       		contextId="com.raytheon.uf.viz.d2d.ui"
             commandId="com.raytheon.uf.viz.d2d.ui.actions.showPrintDialog"