sync katzenpost v0.0.63

[xendarboh]

katzenpost/katzenpost@v0.0.48...v0.0.63

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