c++ version macro
it could be nice to have a c++ version macro, like we have #define OPENTURNS_VERSION 102100
(1.21, like the boost format)
this would allow to handle api breakages better in the future:
https://github.com/openturns/otagrum/commit/67c1e78e02d0cdbf1e3f3639ad296a185d2be1b8
Edited by Julien Schueller