Iclass Legacy Raw Key Recovery Function

Based on the work described in Dismantling iClass whitepaper.
hf iclass legbrute is tested working
hf iclass legrec is partially working: logic of operations and sequence seems to be in order and was tested on simulated data to be effective. The privilege escalation part is still not successful, but the logic should be correct.

include/pm3_cmd.h

@@ -630,6 +630,7 @@ typedef struct {
 #define CMD_HF_ICLASS_CHKKEYS                                             0x039A
 #define CMD_HF_ICLASS_RESTORE                                             0x039B
 #define CMD_HF_ICLASS_CREDIT_EPURSE                                       0x039C
+#define CMD_HF_ICLASS_RECOVER                                             0x039D
 
 
 // For ISO1092 / FeliCa