Draft: [ATR-21215] Configuration for muon T&P chains and test
Implements basic dimuon Tag & Probe chains. Successfully tested with
The changes themselves are mostly just boilerplate -- recognising the
probe entry in the
extra dict, then propagating this through the step and sequence generation.
Further debugging needed for isolated muons. For chains like
muX_iI_muY_probe, the probe leg rejects all features in the first step.