* restore .gitmodules for 2.0

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

This reverts commit 9d342bf3f5b404fc1014400060e012b387bfdb8c.

* immigarate file change from stand-alone repo to TDengine

for 2.0

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

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

for 2.0

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

Refactored crash_gen to have the TdeSubProcess own the SvcMgrThread object, also switched to Pylance

Enhanced crash_gen tool to run multiple instances concurrently, by using dynamic names for tables and databases

Multi-instance code working for single instance case, ready to refactor crash_gen tool into multiple files

Adjusted crash_gen tool directory structure, added valgrind suppression file to expose client side memory leaks

Enhanced crash_gen tool to test against multiple databases concurrently, getting ready to test against clusters