Update to `law==0.1.4` and `luigi==2.8.13` + various fixes & improvements

.style.yapf

000_ADAPT_law.cfg.template_AND_RENAME_TO_law.cfg

analysis/bootstrap.sh

analysis/bootstrap_NNLOJET_rev5088.sh

analysis/bootstrap_NNLOJET_rev5419.sh

analysis/bootstrap_NNLOJET_rev5419_multicore.sh

analysis/bootstrap_NNLOJET_rev5918_bridge-0.0.40.sh

analysis/bootstrap_NNLOJET_rev5918_bridge-0.0.46.sh

analysis/bootstrap_NNLOJET_rev5918_multicore.sh

analysis/bootstrap_NNLOJET_rev6127_bridge-0.0.46.sh

analysis/bootstrap_NNLOJET_rev6127_multicore.sh

analysis/framework.py

analysis/tasks/Absolute.py

analysis/tasks/AddStatunc.py

analysis/tasks/AllPlots.py

analysis/tasks/Combine.py

analysis/tasks/CopyFastWarm.py

analysis/tasks/CopyMergeFastWarm.py

analysis/tasks/CopyRewarmup.py

analysis/tasks/CopyTables.py