feat(java/driver/jni): metadata methods, validation suite

[tokoko]

• adds bindings for: GetObjects, GetInfo, GetTableSchema, GetTableTypes
• adds jni-validation-sqlite suite, most of the stuff in there is still disabled because of sqlite issues. I'll try later to add some of those to quirks and make it work.
• fixes deferred bind bug that came up in validation suite. c driver expects user to rebind if data changes, while java seems to allow a caller to alter VectorSchemaRoot after it has been bound. Added exportBind method in JniStatement that exports bound data to c before each execution rather than during bind call.

[lidavidm]

Thanks! Just one more comment

[lidavidm]

I think this is subject to the same problem as with ArrowArrayStream above: we need to immediately snapshot the contents of the ArrowSchema into a Java object instead of assuming that the allocation of make_unique here will actually persist.

[tokoko]

probably best to introduce new NativeSchemaResult class for this as well to mirror NativeQueryResult since there will be other methods that return schemas (ExecuteSchema). sounds good?

[lidavidm]

That makes sense to me!

[tokoko]

fixed