Optimize:optimize BranchStatus annotation

[lightClouds917]

Ⅰ. Describe what this PR did
Optimize BranchStatus.java annotation,the annotation is very messy.

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 #1404 into develop will decrease coverage by 0.01%.
The diff coverage is 0%.

@@              Coverage Diff              @@
##             develop    #1404      +/-   ##
=============================================
- Coverage      45.98%   45.97%   -0.02%     
  Complexity      1672     1672              
=============================================
  Files            345      345              
  Lines          12635    12636       +1     
  Branches        1596     1596              
=============================================
- Hits            5810     5809       -1     
- Misses          6168     6169       +1     
- Partials         657      658       +1

Impacted Files	Coverage Δ	Complexity Δ
...rc/main/java/io/seata/core/model/BranchStatus.java	100% <ø> (ø)	7 <0> (ø)	⬇️
.../java/io/seata/server/coordinator/DefaultCore.java	59.3% <0%> (-0.35%)	24 <0> (ø)
...server/store/file/FileTransactionStoreManager.java	45.99% <0%> (-0.35%)	19% <0%> (ø)

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[lightClouds917]

the second commit is to add log for issue #1400

[slievrly]

LGTM

[xingfudeshi]

LGTM.