K 10 svn:author V 7 thierry K 8 svn:date V 27 2020-04-06T18:03:45.976919Z K 7 svn:log V 167 Adding HPCombi, High Performance Combinatorics in C++ using vector instructions, and libsemigroups, a C++ library for semigroups and monoids. To be used by SageMath. END