add executeJsonWithParameter, executeJson to SessionPool

[cjdxhjj]

What type of PR is this?

• bug
• feature
• enhancement

What problem(s) does this PR solve?

Issue(s) number:

Description:

add executeJsonWithParameter, executeJson to SessionPool

How do you solve it?

Special notes for your reviewer, ex. impact of this fix, design document, etc:

[Nicole00]

there's two checkstyle violations, could you please format the code?

[cjdxhjj]

@Nicole00 ok

[codecov-commenter]

Codecov Report

Attention: 30 lines in your changes are missing coverage. Please review.

Comparison is base (312a4f2) 63.33% compared to head (4965191) 62.83%.

Files	Patch %	Lines
...va/com/vesoft/nebula/client/graph/SessionPool.java	0.00%	27 Missing ⚠️
.../com/vesoft/nebula/client/graph/NebulaSession.java	0.00%	3 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##             master     #580      +/-   ##
============================================
- Coverage     63.33%   62.83%   -0.50%     
+ Complexity      812      811       -1     
============================================
  Files            72       72              
  Lines          4006     4036      +30     
  Branches        542      547       +5     
============================================
- Hits           2537     2536       -1     
- Misses         1098     1128      +30     
- Partials        371      372       +1     

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[Nicole00]

LGTM！Thanks @cjdxhjj very much!

[cjdxhjj]

@Nicole00 thanks

[QingZ11]

@Nicole00 thanks

Thank you for your great contribution, cjdxhjj.