feat: create gmp tracker event interface

[SGiaccobasso]

https://axelarnetwork.atlassian.net/browse/AXE-5550

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.66%. Comparing base (4e3ebe5) to head (8d842d5).

Additional details and impacted files

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  Coverage   98.66%   98.66%           
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  Files          47       47           
  Lines         747      747           
  Branches      154      154           
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  Hits          737      737           
  Misses          1        1           
  Partials        9        9           

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[ecdsafu]

1. For our RFQ, sender won't be on the chain that this event is being emitted, the sender of the transaction being emitted will just be a relayer for our settlement process, so this should be a string. Could be a sender from Sui, Sol, or Cosmos.
2. We don't have decimals available, so wouldn't be able to emit that.
3. Swaps have a fromToken and toToken, so a bridge amount and single tokenAddress is less relevant here. Better to have fromToken, fromAmount, toToken and toAmount for us. We could arbitrarily pick the destination token if you want just one.

[canhtrinh]

1. For our RFQ, sender won't be on the chain that this event is being emitted, the sender of the transaction being emitted will just be a relayer for our settlement process, so this should be a string. Could be a sender from Sui, Sol, or Cosmos.
   => Thanks, yeah we'll change to a string

2. We don't have decimals available, so wouldn't be able to emit that.
   => How do you represent amounts then?

3. Swaps have a fromToken and toToken, so a bridge amount and single tokenAddress is less relevant here. Better to have fromToken, fromAmount, toToken and toAmount for us. We could arbitrarily pick the destination token if you want just one.
   => Hmm, yeah we just want one. I'll want some team buy-in, but perhaps we can accept both from and to so you don't have to pick

[ecdsafu]

1. For our RFQ, sender won't be on the chain that this event is being emitted, the sender of the transaction being emitted will just be a relayer for our settlement process, so this should be a string. Could be a sender from Sui, Sol, or Cosmos.

=> Thanks, yeah we'll change to a string

2. We don't have decimals available, so wouldn't be able to emit that.

=> How do you represent amounts then?

3. Swaps have a fromToken and toToken, so a bridge amount and single tokenAddress is less relevant here. Better to have fromToken, fromAmount, toToken and toAmount for us. We could arbitrarily pick the destination token if you want just one.

=> Hmm, yeah we just want one. I'll want some team buy-in, but perhaps we can accept both from and to so you don't have to pick

1. Sounds good, thanks

2. We have off chain mappings for the token/chain/decimals and amount is always represented in the decimals of that token/chain

3. Ok sounds good, if you just want one we can choose only one, will leave it with you if you want to add the second token or not

[ecdsafu]

Looking good, for our RFQ we will always emit from source on the hub chain. If you add decimals back in, we won't be able to support anyway and would leave at 0

[ecdsafu]

Hey guys, are these final and good to go into our mainnet contracts? We're deploying soon

[ecdsafu]

Hey guys, just thought of an issue with this approach. Since all events will be emitted from our hub chain, there is no way to express the fromChain for the order if we use the InterchainTokenSent event. You will have the toChain in the event, but not know what the fromChain is. If you're assuming the fromChain is the chain where the event is emitted, this will be incorrect. Every order will appear to be coming from our hub chain.

Would also be helpful to know what UI this is going to be displayed on. Will each event be on axelarscan as a bridge tx with a fromChain toChain and amount?