Add Constraint Annotations

[tobiasstamann]

On Annotation:

• AccompaniedByAnnotations
• AccompaniedByAnnotation(Class annotation, Anchor)
• MustImplementInterfaces()
• MustImplementInterface(Class interface, Anchor)
• MustExtendClass(Class type, Reference)
• MustDeclareMethod(String name, Class... paramTypes,Modifier... modifier)
• MustHavePublicNoargsConstructor()
• MustHaveConstructor(Class... paramTypes,Modifier... modifier)
• NameMustMatchRegex(Anchor, String regexp)

On AnnotationAttributes:

• MustMatchRegularExpression (String ... regularExpressions)
• AccessPath (String accessPath, Anchor)
• Min / Max