feat: axelar GMP relaying

[adamewozniak]

Description

PR for the IBC logic of GMP

Ref: ojo-network/ojo-evm#3

---

Author Checklist

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• included the correct type prefix in the PR title
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• reviewed state machine logic
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• reviewed tests and test coverage
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[codecov-commenter]

Codecov Report

Merging #304 (4810ae9) into main (69bcdb6) will decrease coverage by 1.41%.
The diff coverage is 5.78%.

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@@            Coverage Diff             @@
##             main     #304      +/-   ##
==========================================
- Coverage   17.03%   15.63%   -1.41%     
==========================================
  Files          56       75      +19     
  Lines       16153    18454    +2301     
==========================================
+ Hits         2752     2885     +133     
- Misses      13272    15435    +2163     
- Partials      129      134       +5     

Files	Coverage Δ
x/gmp/genesis.go	100.00% <100.00%> (ø)
x/gmp/keeper/params.go	100.00% <100.00%> (ø)
x/gmp/abci.go	0.00% <0.00%> (ø)
x/gmp/keeper/keeper.go	80.00% <80.00%> (ø)
x/gmp/keeper/grpc_query.go	33.33% <33.33%> (ø)
x/gmp/types/codec.go	50.00% <50.00%> (ø)
x/oracle/keeper/params.go	91.95% <0.00%> (-8.05%)	⬇️
x/gmp/types/abi_encoding.go	42.85% <42.85%> (ø)
x/gmp/types/genesis.go	0.00% <0.00%> (ø)
x/gmp/client/tests/suite.go	70.90% <70.90%> (ø)
... and 10 more

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[adamewozniak]

The vulnerability here in the dependency review warning is a graphql part of the go-ethereum package:

Description
Geth (aka go-ethereum) through 1.13.4, when --http --graphql is used, allows remote attackers to cause a denial of service (memory consumption and daemon hang) via a crafted GraphQL query.

NOTE: the vendor's position is that the "graphql endpoint [is not] designed to withstand attacks by hostile clients, nor handle huge amounts of clients/traffic.

References
https://nvd.nist.gov/vuln/detail/CVE-2023-42319
https://blog.mevsec.com/posts/geth-dos-with-graphql/
https://geth.ethereum.org/docs/fundamentals/security

I don't recommend we wait for this to be fixed by ethereum to merge.

[rbajollari]

Just nitpicks, most of the stuff missing looks addressed in your TODOs. lgtm 🔥