Add Symphony Testnet chain and IBC

[dblackstone1]

Description

Adding chain: Symphony Testnet
Adding coin: Melody

Checklist

Adding Assets

If adding a new asset, please ensure the following:

• Asset is registered to the Cosmos Chain Registry.
• Add asset to bottom of zone_assets.json.
  • chain_name and base_denom are provided and use values exactly as defined at the Chain Registry.
  • path is provided, and the IBC channel referenced is registered at the Chain Registry (unless native to Osmosis).
  • osmosis_verified is set to false
  • listing_date_time_utc is specified and accurate
  • Optional: transfer_methods, peg_mechanism, override_properties, canonical, categories, where necessary (see README for details).

Adding Chains

If adding a new chain, please ensure the following:

• Chain is registered to the Cosmos Chain Registry.
  • Chain's registration must have staking defined, with at least one staking_token denom specified.
  • Chain's registration must have fees defined; at least one fee token has low, average, and high gas prices defined.
• IBC Connection between chain and Osmosis is registered.
• Add chain to bottom of zone_chains.json
  • rpc and rest does not have any CORS blocking of the Osmosis domain, and RPC node has have WSS enabled.
  • explorer_tx_url correctly directs to the transaction when the hash is inserted into the URL.