Simple-value-object

- Fix hash for value objects.
- Remove the CannotBeChanged exception. It is not necessary anymore.

- Fix custom exceptions to allow to pass them as no kwargs

- Add customs exceptions for invariants

- Remove unused imports

- Use python dataclass to create ValueObject

- Rename CannotBeChangeException to CannotBeChanged
- Rename InvariantReturnValueException to InvariantMustReturnBool
- Rename NotDeclaredArgsException to ConstructorWithoutArguments
- Rename ViolatedInvariantException to InvariantViolation
- Simplifly invariants now receives `self` attribute only
- Fix replace_mutable_kwargs_with_immutable_types for `set` kwargs