Changeset 18213 for branches

#3138

• reimplemented extended constraints with an interface and an implementation, because of project reference troubles
• moved the extended shape constraints into IShapeConstrainedRegressionProblemData
• added thresholds for shape constraints -> the error is linear between 0 and 1, error caps at 1 when error >= (intervalbound + thresholdbound)
  • adapted ShapeConstraint and ShapeConstraintsParser to identify and store thresholds
• adapted IntervalUtil to work with thresholds
• adapted NMSESingleObjectiveConstraintsEvaluator and ShapeConstraintsAnalyzer to work with extended constraints
• added a new chart in ShapeConstraintsAnalyzer to show the average constraint violation