Missing equals/hashcode for Options classes

[henningSaulCM]

Hi,

when you get a chance, please provide equals/hashcode implementations for Options classes, e.g. DeepLClientOptions.java and TextTranslationOptions.java.

I've been working on some configuration approaches using Spring ConfigurationProperties and Map<String,Object>. When writing unit tests, having equals/hashcode implementations for Options classes would have come in handy.

Thank you --Henning