Create Java client API

[perone]

Create the Java client API package.

[mycaule]

Can I give it a try?

The way I see it, translate these classes in Java to be able to make ADD and SIMILAR calls above

• Java GRPC Client will have the same interface as: https://github.com/perone/euclidesdb/blob/master/source/similarservice.hpp
• Reuse these protofiles: https://github.com/perone/euclidesdb/blob/master/source/protos/euclidesproto.proto

Java Libraries

• io.grpc:grpc-protobuf

[perone]

Sure @mycaule ! This contribution is very welcome !