feat: icon cluster connection

[bcsainju]

Description:

Added cluster connection contract for icon chains

Commit Message

type: commit message

see the guidelines for commit messages.

Changelog Entry

version: <log entry>

Checklist:

• I have performed a self-review of my own code
• I have documented my code in accordance with the documentation guidelines
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• I have run the unit tests
• I only have one commit (if not, squash them into one commit).
• I have a descriptive commit message that adheres to the commit message guidelines

Please review the CONTRIBUTING.md file for detailed contributing guidelines.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.47%. Comparing base (4e08258) to head (d7f11de).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #386   +/-   ##
=========================================
  Coverage     89.47%   89.47%           
  Complexity       77       77           
=========================================
  Files            42       42           
  Lines          2698     2698           
  Branches         37       37           
=========================================
  Hits           2414     2414           
  Misses          267      267           
  Partials         17       17           

Flag	Coverage Δ
java	85.60% <ø> (ø)
solidity	88.41% <ø> (ø)

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[ibrizsabin]

few changes required , else good to go.