BYO backends, but not DAPR

[SomajitDey]

• Securelay lets you bring your own backends (database, webhook-pubsub and piping-server) but it is not Distributed APp Runtime (DAPR)
• Securelay is your trusted gatekeeper, but not a reverse proxy
• Securelay never exits the control plane and enters the data plane, you own and store your data
• Securelay merely deals with public-to-private matchmaking anchored on the private user's cryptographic identity