added pit controller firmware, and changed the pit activation to send a command via ESP-Now

ROFLS_Arena_Controller/ROFLS_Arena_Controller.ino

@@ -255,6 +255,15 @@ void setup() {
     return;
   }
 
+  // Register Pit controller peer
+  memcpy(peerInfo.peer_addr, broadcastAddressPitController, 6);
+  peerInfo.channel = 0;
+  peerInfo.encrypt = false;
+  if (esp_now_add_peer(&peerInfo) != ESP_OK) {
+    Serial.println("Failed to add receiver 3");
+    return;
+  }
+
   // Initialize both Team button LED states and pit controller state
   sendToREDTEAMbutton.TEAMLED = false;
   sendToBLUETEAMbutton.TEAMLED = false;