Just partially connected to existing theory

   Improvements:
      - (ite c true false) is treated as c in patterns

   Fixes:
      - Why3's Q.compare was extracted to polymorphic compare instead of Q.compare

    terms can be grouped and scheduling of those decisions freezed

  - Makes Ite lazy
  - Partial fix for enumeration of reccursive ADT
  - Fix propagation of AST tests

      Egraph.Ro.t is Egraph.rt and  Egraph.t is Egraph.wt

Use more first class function for attaching event. The second part scheduled
keep the Dem.t type.

    and a debugging flag --debug-flag contradiction

    And check the model before sat

  - perhaps less efficient but normalization can also be used
  - allows to remove CC terms from parents information
  - separately fix a missing find_def in fourier

  Quantifiers instantiate not eager triggers during LastEffort

            in order to more easily prioritize without creating famine

  Don't use Expr.* for ground terms and type

 Modifications made by François Bobot, Stéphane Graham-Lengrand and Guillaume
 Bury. The witan licence has been used for the files not mainly modified by Bobot