Simple-value-object

- 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

- Allow None as params. You can control it with invariants.

- Removing deprecation warnings
- Change license to MIT/X11

- Allow mutable data types but restricted for modifications.

- Reduced the creation time