feat: add layer zero examples

[natanasow]

Description:

LZ is deployed on Hedera and we'd like to dig into see what's possible when considering HTS and it's representation fo ERC20 and ERC 721s.

Explore the LZ offering, and gain familiarity as a team and POC so cross-chain bridging of HTS tokens

Self-improvement docs:

• LZ docs
• OApp
• OFT
• ONFT
• LZ EVM Contracts
• LZ Notion Link

Tasks

• POC of a simple OApp used for messaging to any other LZ support EVM chain (Ethereum, Polygon or Base) hedera-smart-contracts#1060
• POC of a simple OFT to any other LZ support EVM chain hedera-smart-contracts#1077
• POC of a simple OFT Adapter to any other LZ support EVM chain hedera-smart-contracts#1078
• POC of a simple ONFT to any other LZ support EVM chain hedera-smart-contracts#1079
• POC of a simple ONFT Adapter to any other LZ support EVM chain hedera-smart-contracts#1080
• POC an approach to wrap an HTS fungible token and bridge to any other LZ support EVM chain (Ethereum, Polygon or Base) hedera-smart-contracts#1061

Related issue(s):

Fixes #3339

Notes for reviewer:

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[github-actions]

Test Results

 18 files   -   2  236 suites   - 24   32m 45s ⏱️ - 8m 52s
612 tests ±  0  608 ✅ +  2  4 💤 ±0  0 ❌  - 2 
628 runs   - 129  624 ✅  - 125  4 💤  - 2  0 ❌  - 2 

Results for commit 7be6b32. ± Comparison against base commit b5e747f.

♻️ This comment has been updated with latest results.

[quiet-node]

Without context it's quite hard to follow the PR. Could you provide a design document or any documentation that outlines the purpose of the project? The document could also define terms such as OFT and OApp. I believe the document you shared with the team last Friday was very effective. Would you consider updating and including it in this project?

[Nana-EC]

Nice progress, some suggestions

[Nana-EC]

Nice work.
Some suggestions to make it easy to illustrate the E2E flow

[sonarqubecloud]

Quality Gate failed

Failed conditions
3.3% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud

[Nana-EC]

LG, in general we've got the coverage we were looking for.
There's a few tweaks and additions we can make but i'd prefer this PR doesn't get anymore scope creep so let's get this in and address other improvements in follow up since these flows are giving the E2E examples we had hoped for

[quiet-node]

Great work! LGTM. Just some nits and questions which can be addressed in next PRs

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.06%. Comparing base (b5e747f) to head (7be6b32).
Report is 16 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3326      +/-   ##
==========================================
+ Coverage   84.91%   85.06%   +0.14%     
==========================================
  Files          69       69              
  Lines        4655     4688      +33     
  Branches     1042     1050       +8     
==========================================
+ Hits         3953     3988      +35     
+ Misses        397      390       -7     
- Partials      305      310       +5     

Flag	Coverage Δ
config-service	98.14% <ø> (ø)
relay	79.72% <ø> (+0.96%)	⬆️
server	83.28% <ø> (ø)
ws-server	36.66% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

see 10 files with indirect coverage changes