Feature/td 2570

* Add support for async query. Only insert result is parsed.

* Add support for connection pool.

* Add one case for lua connector in smoke test case list.

* Build dymanic library for lua connector before smoke test.

* [TD-3973]<feature>: add jemalloc as submodule.

* add macro definitions in cmake.

* [TD-3973]<feature>: use jemalloc.

build works as following instructions:

cmake .. -DJEMALLOC_ENABLED=true

make

* fix jemalloc at tag 5.2.1

* link jemalloc works.

* make install works.

* support jemalloc in release.sh.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

[TD-4447]<test>import the same csv twice

modify env

modify env

Test/td 4439

[TD-4449]fix user specify column issue

[TD-3963]add community version macro in cmakefile,change keep option base on version

[TD-4443]fix join time precision issue

Feature/query

fix compile issue

[TD-4447]<test>import the same csv twice

Adjust table locking in crash_gen to expose consistency issues

Docs/update latest feature

[TD-4243]<enhance>:remove _block_dist() special dedicated column index and reduce memory usage by approximate percentile

[TD-4400]apitest for prepare

* [TD-4353]<fix>: taosdemo resub if resubAfterConsume != -1

* fix but resubafter use endafter section.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

Fix/td 4324

* [TD-4353]<fix>: taosdemo resub if resubAfterConsume != -1

* fix but resubafter use endafter section.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-4068]<feature>: taosdemo support stmt.

for easy merge purpose. disabled in master.

* fix clang compile error.

* fix memory leak, add more macros. change sqlcount to int

* fix rest segfault.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>