move radiolib wrappers to dedicated directory

src/helpers/radiolib/CustomSX1276Wrapper.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "CustomSX1276.h"
+#include "RadioLibWrappers.h"
+
+class CustomSX1276Wrapper : public RadioLibWrapper {
+public:
+  CustomSX1276Wrapper(CustomSX1276& radio, mesh::MainBoard& board) : RadioLibWrapper(radio, board) { }
+  bool isReceivingPacket() override { 
+    return ((CustomSX1276 *)_radio)->isReceiving();
+  }
+  float getCurrentRSSI() override {
+    return ((CustomSX1276 *)_radio)->getRSSI(false);
+  }
+  float getLastRSSI() const override { return ((CustomSX1276 *)_radio)->getRSSI(); }
+  float getLastSNR() const override { return ((CustomSX1276 *)_radio)->getSNR(); }
+
+  float packetScore(float snr, int packet_len) override {
+    int sf = ((CustomSX1276 *)_radio)->spreadingFactor;
+    return packetScoreInt(snr, sf, packet_len);
+  }
+};