* restore .gitmodules

* Revert "[TD-13408]<test>: move tests out"

This reverts commit 3b050c8b64175c0d26b6bcafcba6c5a68ebf1477.

* revert 3b050c8b64175c0d26b6bcafcba6c5a68ebf1477

* immigrate file change from stand-alone repo to TDengine

for 2.4

* remove tests repository checkout
Co-authored-by: Ntangfangzhi <fztang@taosdata.com>

* [TD-13408]<test>: move tests out

for 2.4 branch

* add Jenkinsfile2
Co-authored-by: Ntangfangzhi <fztang@taosdata.com>

user pass timestamp precision for line protocol, openTSDB related
timestamp accpet only 10 digits(second) or 13 digits(millisecond) by
default