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

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

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

build works as following instructions:

cmake .. -DJEMALLOC_ENABLED=true

make

* fix jemalloc at tag 5.2.1

* fix conflicts

* make install works.

* fix conflicts.

* release script works.

* fix typo

* [TD-3937]<feature>: support jemalloc

add install funtion to all scripts.

* adjust install_jemalloc() position for check compatibility.

* fix position bug.

* add ldconfig for jemalloc library cache refresh.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>