Add Collier
Currently Collier is installed by OpenLoops and Ricola independently, which is a bit stupid.
Again installation looks easy (cmake): https://collier.hepforge.org/installation.html
Recola then needs -Dcollier_path=
Currently Collier is installed by OpenLoops and Ricola independently, which is a bit stupid.
Again installation looks easy (cmake): https://collier.hepforge.org/installation.html
Recola then needs -Dcollier_path=