工单部分接口调用合并至api

[hhyo]

• 升级部分基础依赖（未完全测试）
• 调整api项目的目录结构
• 部分工单接口转移至api，版本为v2

[codecov[bot]]

Codecov Report

Attention: 137 lines in your changes are missing coverage. Please review.

Comparison is base (90fc156) 76.34% compared to head (519e357) 76.05%.

Files	Patch %	Lines
sql_api/serializers/sql_workflow.py	54.48%	71 Missing :warning:
sql_api/api_views/sql_workflow.py	60.57%	41 Missing :warning:
sql_api/permissions/sql_workflow.py	43.90%	23 Missing :warning:
sql_api/serializers/__init__.py	89.47%	2 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1897      +/-   ##
==========================================
- Coverage   76.34%   76.05%   -0.30%     
==========================================
  Files         115      119       +4     
  Lines       15852    15862      +10     
==========================================
- Hits        12103    12064      -39     
- Misses       3749     3798      +49     

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