#364 New CloneWithoutCloneable rule

[Chris Mair]

Create a new CloneWithoutCloneable rule. This would complement the existing CloneableWithoutClone rule.

See PMD: CloneMethodMustImplementCloneable: The method clone() should only be implemented if the class implements the Cloneable interface.

[Artur Gajowy]

fix in pull request:
https://github.com/CodeNarc/CodeNarc/pull/14

[Chris Mair]

This was provided in CodeNarc 0.19 as an "enhanced" rule