Full JES split; flag for JER splitting; new colour scheme

• Add --jes-scheme argument to the plotters to select JEC splitting scheme (default is still Merged, other choices are All and Total). For the complete splitting, only the sources relevant for us have been activated.
  • Note: the FlavorPureXXXX variations are included, but will only be correct with additional changes to bamboo and the CMSJMECalculators package, for which I'll make a PR soon...
• Add --no-split-jer flag to use single JER variation
• Update colour scheme in config file