devel/pcsc-lite: Clean up & update MASTER_SITES.

• Update MASTER_SITES, upstream moved to https://pcsclite.apdu.fr
• Update WWW
• Improve COMMENT
• Add GPLv3+ to LICENSE as it is mentioned in the license file
• Pet portlint:
  • Sort variables (clean up the USE* section)
• Make pkg-message more readable

Reviewed by: krion, mmokhi
Approved by: krion (mentor), mmokhi (maintainer)
Differential Revision: https://reviews.freebsd.org/D17480