[Android] Abstract serialiser

[serj-lotutovici]

Currently the android library uses Jackson as a serialisation library. This makes Jackson a transitive dependency that lands in the consumers dependency tree.

My proposal would be to adapt a more agnostic approach and create an abstraction layer like a Converter (similar to the one in https://github.com/square/retrofit) and allow consumers to select different types of implementations via different artefacts.
There are at least 3 popular libraries used in Android development, so at lest does can be added as standalone artefacts:

• native-navigation-converter-gson for Gson
• native-navigation-converter-moshi for Moshi
• native-navigation-converter-jackson forJackson.