<feat>(interchain): add interchain get block feature.

[kyonRay]

No description provided.

[codecov-commenter]

Codecov Report

Merging #590 (723d9c4) into feature-1.3.2 (5c0d90a) will decrease coverage by 0.11%.
The diff coverage is 0.00%.

❗ Current head 723d9c4 differs from pull request most recent head 9f2f159. Consider uploading reports for the commit 9f2f159 to get more accurate results

Additional details and impacted files

@@                 Coverage Diff                 @@
##             feature-1.3.2     #590      +/-   ##
===================================================
- Coverage            15.32%   15.21%   -0.11%     
  Complexity             441      441              
===================================================
  Files                  186      186              
  Lines                 8838     8898      +60     
  Branches               751      755       +4     
===================================================
  Hits                  1354     1354              
- Misses                7366     7426      +60     
  Partials               118      118              

Files Changed	Coverage Δ
...m/webank/wecross/interchain/InterchainDefault.java	0.00% <ø> (ø)
...webank/wecross/interchain/InterchainErrorCode.java	0.00% <ø> (ø)
...webank/wecross/interchain/InterchainScheduler.java	0.00% <0.00%> (ø)
...wecross/restserver/fetcher/TransactionFetcher.java	3.20% <0.00%> (ø)