drop dependency on Boost.Bimap and Boost.Lambda - #535

drop dependency on Boost.Bimap and Boost.Lambda#535

Becheler wants to merge 2 commits into

boostorg:developboostorg/graph:developfrom

Becheler:refactor/drop-bimap-dependencyBecheler/graph:refactor/drop-bimap-dependencyCopy head branch name to clipboard