CHG: the work in progress of making "HF MFU INFO" / "HF MFU DUMP" goes on.

ook @marshmellows changes and remade them a bit. TagTypeUL_t behaves like a flag-enum.
     "HF MFU DUMP" now autodetects tagtype, and the deviceside should report back proper length.

client/cmdhfmfu.h

@@ -19,6 +19,9 @@ void rol (uint8_t *data, const size_t len);
 
 uint8_t requestAuthentication( uint8_t *nonce);
 int try3DesAuthentication( uint8_t *key);
+uint8_t GetHF14AMfU_Type();
+
+int usage_hf_mfu_dump();
 
 int CmdHFMFUltra(const char *Cmd);
 int CmdHF14AMfUInfo(const char *Cmd);