* Deprecates the IConstraintEncoding.
* The "framework" holds the initial or generated constraints (by
  decoders) and allows to query them for the construction or their
  modification.
* Constraints are associated with Genotype instances to restrict the
  modifications applied to them.
* Constraints are associated with Phenotype types such that constraints
  can be declared before the instance are constructed in order to make
  the construction operations aware of the constraints to be applied.

Signed-off-by: Alexander Diewald <diewald@fortiss.org>