RFID: add support for Kantech IOProx cards (#1261)

applications/lfrfid/helpers/rfid_reader.h

@@ -4,6 +4,7 @@
 #include "decoder_emmarin.h"
 #include "decoder_hid26.h"
 #include "decoder_indala.h"
+#include "decoder_ioprox.h"
 #include "key_info.h"
 
 //#define RFID_GPIO_DEBUG 1
@@ -34,6 +35,7 @@ private:
     DecoderEMMarin decoder_em;
     DecoderHID26 decoder_hid26;
     DecoderIndala decoder_indala;
+    DecoderIoProx decoder_ioprox;
 
     uint32_t last_dwt_value;