DO NOT MERGE. ID, Iso and Trigger scale factors: updated for 8TeV muons, added for 8Te...

...V electrons, added systematics for both. Compiles but not tested.

Still need to test, but so others can see what I've done so far I'm making this pull request, please do not merge.

Also still need to add in the 7TeV scale factors and include all of these changes in the Unfolding workflow in the NTuple Tools.