wip: new structure with json schema validation

[alanrsoares]

• define zod schemas for evm and cosmos chain configs
• codegen scripts for json-schema based on zod schemas
• add sample configs for both evm and cosmos chains
• draft cli for generating configs
• validation scripts
• gh actions validation checks
• complete cli functionality

[canhtrinh]

thanks, great work! a few comments:

1. still needs some kind of mapping that maps file name -> chain id. i.e. goerli -> '5'.
2. can the files just be called chainName.json instead of chainName.chain.json?
3. ideally (actually), it would be great if we had a single json file with a full list of all the json files inputted by users above. i.e. users can generate their own inputs, but upon pull request, a new list is autogenerated via codegen combining all those individual files.
4. can you add an ITS example? i saw the json schema validation and want to ensure it matches this proposed structure we agreed with the Squid team (at least for the assets): https://www.notion.so/bright-ambert-2bd/New-asset-chain-config-proposal-c0133643733f4fd19401b0006a5bcac8?pvs=4

we can talk next week on these comments?