move radiolib wrappers to dedicated directory

src/helpers/radiolib/CustomLR1110Wrapper.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "CustomLR1110.h"
+#include "RadioLibWrappers.h"
+
+class CustomLR1110Wrapper : public RadioLibWrapper {
+public:
+  CustomLR1110Wrapper(CustomLR1110& radio, mesh::MainBoard& board) : RadioLibWrapper(radio, board) { }
+  bool isReceivingPacket() override { 
+    return ((CustomLR1110 *)_radio)->isReceiving();
+  }
+  float getCurrentRSSI() override {
+    float rssi = -110;
+    ((CustomLR1110 *)_radio)->getRssiInst(&rssi);
+    return rssi;
+  }
+
+  void onSendFinished() override {
+    RadioLibWrapper::onSendFinished();
+    _radio->setPreambleLength(16); // overcomes weird issues with small and big pkts
+  }
+
+  float getLastRSSI() const override { return ((CustomLR1110 *)_radio)->getRSSI(); }
+  float getLastSNR() const override { return ((CustomLR1110 *)_radio)->getSNR(); }
+  int16_t setRxBoostedGainMode(bool en) { return ((CustomLR1110 *)_radio)->setRxBoostedGainMode(en); };
+};