Create Bramble modules
- bramble-android: plugins and any backend code needed for running bramble-core on Android
- bramble-api: API for bramble-core
- bramble-core: crypto, data, db, event, identity, keyagreement, lifecycle, plugins, properties, reliability, reporting, settings, socks, sync, system, transport, util (excluding HtmlUtils)
- bramble-j2se: plugins and any backend code needed for running bramble-core on J2SE (everything in briar-desktop, by the look of it)
Subtask of #136 (closed).