feat: add piv sign(but not compele)

src/main.rs

@@ -11,6 +11,7 @@ mod pgpcardlist;
 mod pgpcardsign;
 mod pgpcarddecrypt;
 mod piv;
+mod pivsign;
 mod chall;
 mod challconfig;
 
@@ -44,6 +45,7 @@ fn inner_main() -> CommandError {
         Box::new(pgpcardsign::CommandImpl),
         Box::new(pgpcarddecrypt::CommandImpl),
         Box::new(piv::CommandImpl),
+        Box::new(pivsign::CommandImpl),
         Box::new(chall::CommandImpl),
         Box::new(challconfig::CommandImpl),
     ];