* fix: add unit test for taos-tools
* fix: only .cpp include
* fix: remove no use function
* fix: restore toolsSys.c
* fix: add toolsSys case
* fix: rebuild error fixed
* fix: fix build error
* fix: support get vgroups with core and memory limit
* fix: build error for strcasecmp
* fix: add insertBasic.py case
* fix: add command line set vgroups=3
* fix: change with ns database
* toolscJson read with int replace float and add insertPrecison.py
* fix: add insertBindVGroup.json case
* fix: remove public fun removeQuotation
* fix: vgroups change method
* fix: memory leak for runInsertLimitThread slot
* insertPrecision.py word write wrong
* fix: check isFloat number
* fix: vgroups change logic error
* fix: insertBasic.py real and expect error
* fix: adjust default vgroups
* fix: adjust default vgroups modify comment
Alex Duan