Convert NoSQL driver to use JNX

[jesse-gallagher]

JNX has been properly open source for a little while now, and it'd be good to convert the NoSQL driver to use it.

There'll be some fiddly aspects: JNX has a number of transitive dependencies, and developers who use XPages JEE may also have their own JNX installation. Accordingly, JNX and its dependencies should be hidden inside a bundle and not exposed to the rest of the environment. Tycho will make this a little annoying but not impossible.

Moreover, other parts of the stack may want to use some JNX-exposed capabilities, like access to the statistics store. It would probably make sense to create an API shim layer like NSF ODP uses to paper over the differences and allow a hiding JNX bundle to contribute the API without worry of contamination.