…Enum, in addition don't use python liek structure binding as this isn't c++14 compliant. Given this was only place which c++14 doesn't like it is better to use something simpler.

…ariables whihc are part of class (this is waste) now we fill xsec norm direclty from yaml. This should make mainanace and code clarity much better. I am thinking to make similiar stucture for splines in the near future.

… to spdlog

… more mainainteable, but also is better memroy wise

…ure for this