security/py-pyptlib: Fix checksum mismatch, remove BROKEN

• Switch MASTER_SITE to CHEESESHOP
• Add NO_ARCH
• Add LICENSE_FILE
• Sort USE_PYTHON
• Add regression test

PR: 220669
Reviewed by: koobs
Approved by: koobs (ports)
Approved by: portmgr (blanket)
Differential Revision: https://reviews.freebsd.org/D11562
MFH: 2017Q3