Consolidate Full/Streaming builders into a single builder

[pdex]

The lombok builders work well for getting a quick and dirty builder, google auto might allow us to add more validation, as well as consolidate the building of full/streaming objects into a single builder.

#152
https://github.com/xjdr/xio/pull/152/files#diff-e330a062394a6dad49fd66ea7d590b1bR11