Refactored BooleanFormula to be in line with TTG (#21592)

There are two parts to this commit.
* We moved the definition of BooleanFormula over to L.H.S.BooleanFormula
* We parameterized the BooleanFormula over the pass

The GHC specific details of BooleanFormula remain in Ghc.Data.BooleanFormula.
Because its parameterized over the pass its no longer a functor or
traversable, but we defined bfMap and bfTraverse for the cases where we
needed fmap and traverse originally. Most other changes are just churn.

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Metric Decrease:
    MultiLayerModulesTH_OneShot
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