add executeJsonWithParameter, executeJson to SessionPool

[cjdxhjj]

What type of PR is this?

• [ ] bug
• [x] feature
• [x] 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 :warning:
.../com/vesoft/nebula/client/graph/NebulaSession.java	0.00%	3 Missing :warning:

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Additional details and impacted files

```diff @@ 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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[cjdxhjj]

@Nicole00 thanks

[QingZ11]

@Nicole00 thanks

Thank you for your great contribution, cjdxhjj.