feat: icon bridge migration

[izyak]

Closes #ISSUE-NUMBER

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[bot]]

Codecov Report

Attention: Patch coverage is 3.03030% with 192 lines in your changes are missing coverage. Please review.

Project coverage is 33.45%. Comparing base (43e7ce3) to head (244cea6). Report is 3 commits behind head on main.

Additional details and impacted files

[](https://app.codecov.io/gh/icon-project/icon-bridge/pull/872?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=icon-project) ```diff @@ Coverage Diff @@ ## main #872 +/- ## ============================================ - Coverage 36.39% 33.45% -2.94% + Complexity 811 748 -63 ============================================ Files 125 127 +2 Lines 12061 12458 +397 Branches 1091 1216 +125 ============================================ - Hits 4389 4168 -221 - Misses 7332 7953 +621 + Partials 340 337 -3 ``` | [Files](https://app.codecov.io/gh/icon-project/icon-bridge/pull/872?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=icon-project) | Coverage Δ | | |---|---|---| | [solidity/bts/contracts/BTSCore.sol](https://app.codecov.io/gh/icon-project/icon-bridge/pull/872?src=pr&el=tree&filepath=solidity%2Fbts%2Fcontracts%2FBTSCore.sol&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=icon-project#diff-c29saWRpdHkvYnRzL2NvbnRyYWN0cy9CVFNDb3JlLnNvbA==) | `8.37% <0.00%> (+0.12%)` | :arrow_up: | | [.../java/foundation/icon/btp/bts/BTPTokenService.java](https://app.codecov.io/gh/icon-project/icon-bridge/pull/872?src=pr&el=tree&filepath=javascore%2Fbts%2Fsrc%2Fmain%2Fjava%2Ffoundation%2Ficon%2Fbtp%2Fbts%2FBTPTokenService.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=icon-project#diff-amF2YXNjb3JlL2J0cy9zcmMvbWFpbi9qYXZhL2ZvdW5kYXRpb24vaWNvbi9idHAvYnRzL0JUUFRva2VuU2VydmljZS5qYXZh) | `57.50% <31.57%> (-25.48%)` | :arrow_down: | | [solidity/bts/contracts/BTSCoreV5.sol](https://app.codecov.io/gh/icon-project/icon-bridge/pull/872?src=pr&el=tree&filepath=solidity%2Fbts%2Fcontracts%2FBTSCoreV5.sol&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=icon-project#diff-c29saWRpdHkvYnRzL2NvbnRyYWN0cy9CVFNDb3JlVjUuc29s) | `0.00% <0.00%> (ø)` | | ... and [7 files with indirect coverage changes](https://app.codecov.io/gh/icon-project/icon-bridge/pull/872/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=icon-project)