devel/py-reedsolo: [NEW PORT] Pure-Python Reed Solomon encoder/decoder

A pure-python universal errors-and-erasures Reed-Solomon Codec, based on
the wonderful tutorial at wikiversity, written by "Bobmath" and "LRQ3000".

WWW: https://github.com/tomerfiliba/reedsolomon

Reviewed by: koobs
Approved by: koobs (ports, mentor, implicit)
Differential Revision: https://reviews.freebsd.org/D30551
MFH: No (Port does not exist in quarterly)