* [TD-10469]<feature>: use blm to replace httpd

* add blm3 as submodule and modify the install script.

* make http disabled by default.

* use external project for go build.

* make install and systemctl works.

* change blm3 to official repo.

* fix alert build missing sqlx package.

* update README regarding golang env setup.

* remove blm3.

* modify script to support blm3

* <test>udpate submodule in CI

* update jenkinsfile

* update blm3 with statsd port changed and config file name changed.

* still use tdengine's httpd for lite version.

* include blm.toml in released packages.

* merge with develop branch.

* update grafana plugin to support telegraf.

* fix python test framework

* fix blm3.toml name

* comment off restful test for blm3 CI.

* fix blm.toml name

* comment off http related case for blm3.

* fix cmake define.inc for windows build

* update grafanaplugin

* update blm3

* update grafana.

* update grafana plugin to support statsd.

* update blm3 to support lower version go.

* update grafanaplugin and blm3 bugfix.

* update grafana plugin, dashboard name changed.

update blm3 for cinterface error code.

* disable blm3 in arm32

* support blm3 --version

* change cmake minimum version requirement from 2.8 to 3.0
Co-authored-by: Nliuyq-617 <yqliu@taosdata.com>

* [TD-5128]<fix>: odbc compile failed.

* fix cmake minimum version complain on mac and windows.

* fix visual studio 2012 build issue.

* [TD-5128]<fix>: odbc compile failed.

* cherry pick from master branch.

* fix visual studio 2012 build issue.

1. move gnu compile flags "-pipe -Wshadow" from root "CMakeLists.txt" to "cmake/define.inc"; and change compile flag "/O3" to "/O2", because "/O3" is not supported by MSVC.
2. fix compile warnings in "src/util/src/tbuffer.c", by using "union" to transform integer with float and double.
3. use "memcpy()" instead of directly type convert in "rc/util/src/tutil.c" to resolve memory alignment problem in ARM platform.
4. reduce other compile warnings.

[TD-32] 1. add tsdb query processing functions. 2. refactor connect to employ async way. 3. change some variables' name