sync katzenpost v0.0.63

https://github.com/katzenpost/katzenpost/compare/v0.0.48...v0.0.63

- [x] Update to latest katzenpost release.
- [x] Add compile-time flag to enable data compression between walletshield and http_proxy -- this flag supports lab tests to discern any performance implications
- [x] `node/Dockerfile`:
  - [x] update katzenpost cmd paths
  - [x] build replica with rocksdb deps
