feat: add support for hex address in chain link

[dadamu]

Description

Closes: #685

This PR is the implementation of #685. It extends the support to the hex address like ETH.

Note: Rename PR to add support for eth address since eth address is generated in the other way.

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Author Checklist

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• confirmed the correct type prefix in the PR title
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[codecov]

Codecov Report

Merging #688 (60f40f5) into master (1a22342) will decrease coverage by 5.13%.
The diff coverage is 59.79%.

❗ Current head 60f40f5 differs from pull request most recent head 9f8c160. Consider uploading reports for the commit 9f8c160 to get more accurate results

@@            Coverage Diff             @@
##           master     #688      +/-   ##
==========================================
- Coverage   84.23%   79.10%   -5.14%     
==========================================
  Files          91       52      -39     
  Lines        6624     4201    -2423     
==========================================
- Hits         5580     3323    -2257     
+ Misses        833      711     -122     
+ Partials      211      167      -44     

Impacted Files	Coverage Δ
x/profiles/client/cli/cli_app_links.go	34.16% <ø> (ø)
x/profiles/client/cli/cli_params.go	70.00% <ø> (ø)
x/profiles/client/cli/cli_relationships.go	75.51% <ø> (ø)
x/profiles/client/utils/utils.go	56.25% <ø> (ø)
x/profiles/keeper/alias_functions.go	90.47% <ø> (ø)
x/profiles/keeper/genesis.go	84.61% <ø> (ø)
x/profiles/keeper/invariants.go	100.00% <ø> (ø)
x/profiles/keeper/keeper_blocks.go	85.50% <ø> (ø)
x/profiles/keeper/keeper_chain_links.go	84.74% <ø> (ø)
x/profiles/keeper/keeper_dtag_transfers.go	89.09% <ø> (ø)
... and 48 more

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[leobragaz]

Looks ready now 👍

[RiccardoM]

Just some small changes but otherwise LGTM