ISF selections - Fatras dependences

Import and use FastCalo cfgs

Initial commit of new fatras services config

Add some fatras flags. Add flake8 to touched packages

Replace a bunch of the getPublicTools calls to locally defined functions

Replace some more getPublicTool uses

Add more Fatras tuning flags. Replace more tool getters

Link more tools. Begin to understand circular dependence with ​ISF_SimulationSelectorsConfigNew.py

Split Fatras (Sim) config to avoid circular dependence. Attach many private tools to returned accumulators

Attach more private tools. Begin migration of some necessary tracking config

Search functions in ISF_FatrasConfig.py for those duplicated in ConfigNew version. Merge in differing config. Link elsewhere.

Combine new config Fatras services

Fix errors pointed out by flake8

Only add simulator in single threaded mode

Fix naming errors, Link correct extrapolator for *Engine