support for 8G gestures

libs/core/enums.d.ts

@@ -115,6 +115,11 @@ declare namespace basic {
      */
     //% block="6g"
     SixG = 9,  // MICROBIT_ACCELEROMETER_EVT_6G
+    /**
+     * Raised when a 8G shock is detected
+     */
+    //% block="8g"
+    EightG = 10,  // MICROBIT_ACCELEROMETER_EVT_8G
     }
 declare namespace input {
 }