Refactor LED management (#745)

-replace low power led by led info
-enable to change the led ON value
-go upper case for the led macros

Also transform BLE connect warning to notice in log
Add Sonoff RF Bridge LED

main/ZboardM5.ino

@@ -215,7 +215,7 @@ void drawLogo(int logoSize, int circle1X, int circle1Y, bool circle1, bool circl
 }
 
 void M5Display(char* line1, char* line2, char* line3) {
-  if (low_power_mode == 2) digitalWrite(LOW_POWER_LED, 1 - LOW_POWER_LED_OFF);
+  if (low_power_mode == 2) digitalWrite(LED_INFO, LED_INFO_ON);
   wakeScreen(NORMAL_LCD_BRIGHTNESS);
   M5.Lcd.fillScreen(TFT_WHITE);
   drawLogo(M5.Lcd.width() * 0.1875, (M5.Lcd.width() / 2) - M5.Lcd.width() * 0.24, M5.Lcd.height() * 0.5, true, true, true, true, true, true);
@@ -224,6 +224,6 @@ void M5Display(char* line1, char* line2, char* line3) {
   M5.Lcd.drawString(line2, 5, M5.Lcd.height() * 0.8, 1);
   M5.Lcd.drawString(line3, 5, M5.Lcd.height() * 0.9, 1);
   delay(2000);
-  digitalWrite(LOW_POWER_LED, LOW_POWER_LED_OFF); // to switch off no need of condition
+  digitalWrite(LED_INFO, !LED_INFO_ON); // to switch off no need of condition
 }
 #endif