Create Routing Specs

[lidel]

We have various routing types, and no high level spec + specific routing types also lack basic specs.

Routing specs we should have:

• High level overview of types of routing, poitning at sub-specs for specific types / implementations / standards
• DHT (peer / content / ipns records + put/get strategies and defaults - when to expire, how many copies to put/get etc)
• Pubsub (IPNS over Pubsub example, but fleshed out as a generic protocol)
• content routing over Bitswap: https://research.protocol.ai/publications/accelerating-content-routing-with-bitswap-a-multi-path-file-transfer-protocol-in-ipfs-and-filecoin/delarocha2021.pdf
  • sub-quest: improve bitswap specs themselves based on the above paper.
• IPNI router (tbd, depends on IPIP-342: Ambient Discovery of Content Routers #342)