vere: refactors u3qe_de_base16() to properly handle odd lengths
vere: refactors u3qe_de_base16() to properly handle odd lengths

urbit/urbit,ngzax/urbit,urbit/urbit,ngzax/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,urbit/urbit,ngzax/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,ngzax/urbit,ngzax/urbit