add some more keypad keys support

src/common/PKeyboardHandler.cxx

@@ -506,14 +506,24 @@ PhysicalKeyboardHandler::EventMappingArray PhysicalKeyboardHandler::DefaultMenuM
   {Event::UIDown,                   KBDK_DOWN},
   {Event::UILeft,                   KBDK_LEFT},
   {Event::UIRight,                  KBDK_RIGHT},
+  {Event::UISelect,                 KBDK_RETURN},
 
   {Event::UIHome,                   KBDK_HOME},
   {Event::UIEnd,                    KBDK_END},
   {Event::UIPgUp,                   KBDK_PAGEUP},
   {Event::UIPgDown,                 KBDK_PAGEDOWN},
-
-  {Event::UISelect,                 KBDK_RETURN},
+  // same with keypad
+  {Event::UIUp,                     KBDK_KP_8},
+  {Event::UIDown,                   KBDK_KP_2},
+  {Event::UILeft,                   KBDK_KP_4},
+  {Event::UIRight,                  KBDK_KP_6},
   {Event::UISelect,                 KBDK_KP_ENTER},
+
+  {Event::UIHome,                   KBDK_KP_7},
+  {Event::UIEnd,                    KBDK_KP_1},
+  {Event::UIPgUp,                   KBDK_KP_9},
+  {Event::UIPgDown,                 KBDK_KP_3},
+
   {Event::UICancel,                 KBDK_ESCAPE},
 
   {Event::UINavPrev,                KBDK_TAB, KBDM_SHIFT},

src/debugger/gui/PromptWidget.cxx

@@ -328,6 +328,7 @@ bool PromptWidget::handleKeyDown(StellaKey key, StellaMod mod)
       break;
 
     case KBDK_DELETE:
+    case KBDK_KP_PERIOD: // actually the num delete
       killChar(+1);
       dirty = true;
       break;

src/gui/EditableWidget.cxx

@@ -142,6 +142,7 @@ bool EditableWidget::handleKeyDown(StellaKey key, StellaMod mod)
       break;
 
     case KBDK_DELETE:
+    case KBDK_KP_PERIOD:
       dirty = killChar(+1);
       if(dirty)  sendCommand(EditableWidget::kChangedCmd, key, _id);
       break;