This Pr solves Issue: #22333 by adding Support for UnaryInterceptors in the Java-Native-Client

This is done by adding a new config option called "useUnaryInterceptor" which changes the Datatype of the ResponseInterceptor from a Consumer to a UnaryInterceptor. With a variable reassignment this allows for changing an incomming response before it gets passed.

This change doesn't break any existing Systems due to the default value of false for the "useUnaryInterceptor".

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