optimize: separate tc In/Outbound interface.

[objcoding]

Ⅰ. Describe what this PR did

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-io]

Codecov Report

Merging #2227 into develop will decrease coverage by 0.14%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop    #2227      +/-   ##
=============================================
- Coverage      53.94%   53.79%   -0.15%     
  Complexity      2622     2622              
=============================================
  Files            490      490              
  Lines          15346    15346              
  Branches        1751     1721      -30     
=============================================
- Hits            8278     8255      -23     
  Misses          6288     6288              
- Partials         780      803      +23

Impacted Files	Coverage Δ	Complexity Δ
...obuf/convertor/BranchRegisterRequestConvertor.java	90.47% <0%> (-9.53%)	3% <0%> (ø)
...otobuf/convertor/GlobalBeginResponseConvertor.java	92.59% <0%> (-7.41%)	3% <0%> (ø)
...otobuf/convertor/GlobalStatusRequestConvertor.java	93.75% <0%> (-6.25%)	3% <0%> (ø)
...otobuf/convertor/GlobalCommitRequestConvertor.java	93.75% <0%> (-6.25%)	3% <0%> (ø)
...obuf/convertor/GlobalRollbackRequestConvertor.java	93.75% <0%> (-6.25%)	3% <0%> (ø)
...protobuf/convertor/RegisterTMRequestConvertor.java	94.73% <0%> (-5.27%)	3% <0%> (ø)
...protobuf/convertor/RegisterRMRequestConvertor.java	90.47% <0%> (-4.77%)	3% <0%> (ø)
...tobuf/convertor/BranchReportResponseConvertor.java	95.45% <0%> (-4.55%)	3% <0%> (ø)
...otobuf/convertor/BranchReportRequestConvertor.java	95.45% <0%> (-4.55%)	3% <0%> (ø)
...buf/convertor/BranchRegisterResponseConvertor.java	95.83% <0%> (-4.17%)	3% <0%> (ø)
... and 11 more

[slievrly]

LGTM

[zjinlei]

LGTM