added "welcome chime"

platform/status_led.c

@@ -129,6 +129,15 @@ void Indicator_Tick(void)
             else if (effect_time % 200 == 0) led_on();
             else if (effect_time % 200 == 100) led_off();
         }
+        else if (active_effect == STATUS_WELCOME) {
+            if (effect_time == 0) led_on();
+            else if (effect_time == 200) led_off();
+            else if (effect_time == 300) led_on();
+            else if (effect_time == 500) {
+                led_off();
+                active_effect = STATUS_NONE;
+            }
+        }
 
         effect_time++;
     }

platform/status_led.h

@@ -16,6 +16,7 @@ enum GEX_StatusIndicator {
     STATUS_DISK_BUSY,
     STATUS_DISK_ATTACHED,
     STATUS_DISK_REMOVED,
+    STATUS_WELCOME,
     STATUS_HEARTBEAT
 };