chore(ess): Introduce ess.h

epicardium/ble/ble_api.h

@@ -25,5 +25,3 @@ void BleStart(void);
 /* ATT client module interface. Used by main BLE module */
 void bleValueUpdate(attEvt_t *pMsg);
 void bleDiscCback(dmConnId_t connId, uint8_t status);
-
-void bleESS_update();

epicardium/ble/ess.c

+#include "ess.h"
 #include "wsf_types.h"
 #include "util/bstream.h"
 #include "wsf_assert.h"

epicardium/ble/ess.h

+#pragma once
+
+void bleESS_update();