[SYS/BT] Semaphores and new BT Controller (#1819)

Add semaphore to the enqueue calls to avoid concurrency issues
Add new BT controller to avoid scan evt timeout bug

main/ZdisplaySSD1306.ino

@@ -467,7 +467,8 @@ String stateSSD1306Display() {
   DISPLAYdata["log-oled"] = (bool)logToOLEDDisplay;
   DISPLAYdata["json-oled"] = (bool)jsonDisplay;
   DISPLAYdata["origin"] = subjectSSD1306toMQTT;
-  enqueueJsonObject(DISPLAYdata);
+  handleJsonEnqueue(DISPLAYdata);
+
   // apply
   Oled.display->setBrightness(round(displayBrightness * 2.55));