List rollups networks

[zamrokk]

MOTIVATION: Be able to list all rollup from TORU

SCENARII:

Feature: rollups

Scenario:
When user U enter home page
Then rollup list is displayed

DETAILED DESIGN:

//TODO work with @xvw to know how to get this endpoint

ALTERNATIVES: Ask @xvw to provide CLI

[zamrokk]

need a RPC protocol on pair ( client, node)
2 solutions because freeze has passed :

1. DURING 'J' TIME : use our unique node that does "rollup indexer" : receive a tezos node, and monitor all rollups. Need to create a typescript client lib to import on the dapp. rollup will scan Tezos chain, DB will store rollups info. ask @infra. Best have, generate a typescript client from indexer API ?
2. DURING 'K' TIME : later, will add RPC endpoints once 2-3 weeks feature freeze, then 'J' , rollups will be on protocol, then