test: Add IBC conformance test and enable as gh workflow

[spoo-bar]

Using the Interchain test framework, this PR adds IBC conformance tests as well as a gh workflow which runs the test for every PR targeting main

How it works

The test is configured for bidirectional IBC conformance testing of the following cases.

Archway <> Gaia

1. Successful IBC transfer from Archway -> Gaia and Gaia -> Archway.
2. Proper handling of no timeout from Archway -> Gaia and Gaia -> Archway.
3. Proper handling of height timeout from Archway -> Gaia and Gaia -> Archway.
4. Proper handling of timestamp timeout from Archway -> Gaia and Gaia -> Archway.

How to use it

There are two ways to use this:

1. Test via github workflow
   The Run Interchaintest github workflow automatically runs on every PR targeting main.

2. Test locally
   This tests needs heighliner images as other interchain tests. Find the details to build the images at /interchaintest/README.md or here test: Add chain upgrade test as gh action #430

   cd interchaintest
   go test -v -race -run TestGaiaConformance

Why we need this

1. Ensures accurate IBC client, channel and connection creation
2. Ensures IBC messages are properly relayed and acknowledged
3. Ensures IBC packets are being properly timed out
4. SDK 47 upgrades requires modifications to app wiring, this will catch any bad wiring of ibc components

---

Note

The default Interchaintest framework does not work with Archway as it dosent handle Coin precision of 18 very well. There are some hardcoded values for genesis accounts and gentx which amount to too little for archway. So, I have forked the repo and just fixed the hardcoded values to make more sense for Archway.

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (2606ed9) 69.52% compared to head (b53c9e4) 69.52%.
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #431   +/-   ##
=======================================
  Coverage   69.52%   69.52%           
=======================================
  Files          68       68           
  Lines        4023     4023           
=======================================
  Hits         2797     2797           
  Misses       1128     1128           
  Partials       98       98           

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[zanicar]

LGTM