[TS-836]<feature>: getLong return a timestamp with good precision

[TD-11544][Enhancement] compatibility between old version client and new version server

[td-11899]STMT use now as timestamp cause "Timestamp out of range" error

* [TD-11517]<test>: add test case for python connector

* [TD-11634]<fix>: make tests and examples code compatible with python2

* [TD-11517]<test>: fix error in python examples test case

* [TD-11958]<test>: fix CI error for C# taosdemo test case

* chore: no changes for go connector

* chore: fix C# taosdemo binary path

* allocate enough buffer to accomodate tag data when get table meta from mnode

* accumulate affected rows count
Co-authored-by: Nshenglian zhou <slzhou@taosdata.com>

[TS-816]<fix>: query cannot stop in windows

Test/td 10700 d

[TS-863]fix oem version installclient scripts

[TS-863]fix oem version makeclient_xx.sh

TD-11623: improve schemaless insert performance

[TD-10952]<test>: Renew testcases  for opentstb-telnet-protocol with taosc and Finish testcases  for opentstb-telnet-protocol with taosadapter

[TD-11959]<CI>change Jenkins build instruction for taosAdapter

Update mnodeTable.c

[TS-832]<feature>:check and output drop tables by specific errNo

* [TD-10522]<feature>:csharp support stmt

* submit twice

* add fetchfeild test case

* fix singlebind error in linux

* delete extra writeline

[TS-844]<test>show variables include httpDbNameMandatory

[TS-782]<fix>: <TDinsight>when multiple network interface is present,net_in/net_out values are 0

[TD-11592]<fix>: show create table column and tag result lose escape character

update http build instruction and fix zlib-devel installation for CentOS.