batch insert support for non-self-inc primary keys

[zjinlei]

Ⅰ. Describe what this PR did

feature: batch insert support for non-self-incrementing primary keys

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

use test case BatchInsertExecutorTest.java

Ⅴ. Special notes for reviews

[codecov-io]

Codecov Report

Merging #1337 into develop will decrease coverage by 0.02%.
The diff coverage is 73.07%.

@@              Coverage Diff              @@
##             develop    #1337      +/-   ##
=============================================
- Coverage      45.77%   45.75%   -0.03%     
- Complexity      1655     1660       +5     
=============================================
  Files            345      345              
  Lines          12345    12360      +15     
  Branches        1558     1535      -23     
=============================================
+ Hits            5651     5655       +4     
  Misses          6057     6057              
- Partials         637      648      +11

Impacted Files	Coverage Δ	Complexity Δ
...va/io/seata/rm/datasource/exec/InsertExecutor.java	66.27% <73.07%> (+7.12%)	20 <9> (+5)	⬆️
...obuf/convertor/BranchRegisterRequestConvertor.java	88% <0%> (-8%)	3% <0%> (ø)
...buf/convertor/GlobalLockQueryRequestConvertor.java	92.59% <0%> (-7.41%)	3% <0%> (ø)
...obuf/convertor/GlobalRollbackRequestConvertor.java	94.73% <0%> (-5.27%)	3% <0%> (ø)
...otobuf/convertor/GlobalStatusRequestConvertor.java	94.73% <0%> (-5.27%)	3% <0%> (ø)
...otobuf/convertor/GlobalCommitRequestConvertor.java	94.73% <0%> (-5.27%)	3% <0%> (ø)
...protobuf/convertor/RegisterTMRequestConvertor.java	95.45% <0%> (-4.55%)	3% <0%> (ø)
...protobuf/convertor/RegisterRMRequestConvertor.java	91.66% <0%> (-4.17%)	3% <0%> (ø)
...otobuf/convertor/BranchReportRequestConvertor.java	92.59% <0%> (-3.71%)	3% <0%> (ø)
...otobuf/convertor/BranchCommitRequestConvertor.java	96.42% <0%> (-3.58%)	3% <0%> (ø)
... and 6 more

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[slievrly]

in PS and non-PS mode, Insert into xx () values(),() , works well.

[xingfudeshi]

LGTM.

[xingfudeshi]

Unit Tests are passed.