CHG: updated helptext for lf t55xx bruteforce

ADD: a ROL function in util.c
ADD: two pwdgen functions in cmdhfmfu.c,  call them with a 7byte UID and get a 4byte number back. Will see if it can be connected with the "hf mfu info" command,  make data extraction easier later on.
ADD: added some more easy pwd in the dictionary file default_pwd.dic

client/cmdhfmfu.h

@@ -28,6 +28,8 @@ int usage_hf_mfu_eload(void);
 
 int CmdHFMFUltra(const char *Cmd);
 
+uint32_t ul_ev1_pwdgenA(uint8_t* uid);
+
 typedef enum TAGTYPE_UL {
 	UNKNOWN       = 0x000000,
 	UL            = 0x000001,