Fix compiler warnings on unused Err vars

Add support for ordered TLV maps to iso7816:encode_ber_tlvs_map

iso7816:invert_tlv_map still produces an unordered TLV map, but
now you can give a list of tuples to encode instead to have it
produce ordered output.

Also release 1.3.0

Handle no_service and no_readers errors better, release 1.2.2

Solves a VM crash which can occur when SCardEstablishContext()
fails due to one of these errors.

Also changes pcsc_card_db to carry on with an empty readers list
if receiving one of these errors at startup (periodically
retrying to get a new context).

Fixes #1

Fix missing T=0 iso7816_chain case, release 1.2.1

Add iso7816 tlv_maps feature, release 1.2.0

Release 1.1.5

Release 1.1.4

Handle transforms whose cooked formats return is not a list

Pass through desfire mapped SW values

Fix license, release 1.0.0