fix console for mode

libs/screen/targetoverrides.ts

@@ -27,6 +27,7 @@ namespace brick {
         ShowLines,
         Image,
         Ports,
+        Console,
         Custom
     }
     let screenMode = ScreenMode.None;
@@ -197,6 +198,12 @@ namespace brick {
         })
     }
 
+    export function showConsole() {
+        console.sendToScreen();
+        screenMode = ScreenMode.Console;
+        clearScreen();
+    }
+
     /**
      * An image
      * @param image the image