* [TD-12534](connector)<enchance>:scharp connector publish to nuget

* [TD-12534]<enchance>(connector):scharp connector publish to nuget

* [TD-12534]<enchance>(connector):remove nuget pack

* [TD-12534]<enhance>(connector):ci test

* [TD-12534](connector)<enchance>:fix with review comments

* [TD-10547]<feature>:c# support json tag

* fix conflict

* fix conflict  2nd

* ci re run

* fix ci

* ci test

* ci test3rd

* split git ingnore file into prject direction

* fix format JsonTag.cs

* [TD-11518]<test>:add-csharp-sample-to-ci

* skip taosdemo

* fix conflict

* fix conflict 3rd

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

* submit twice

* add fetchfeild test case

* fix singlebind error in linux

* delete extra writeline

* [TD-11431]<feature>:c# connector publish and example fix

* update c# connector manual since connector publish to nuget

* fix doc,remove <feff>

* [TD-6535]<fix>: force cleanup tscCache to close tsc timer, which will cause segmentfault

* [TD-6543]<doc>: document support compile with dotnet sdk

* [TD-4944]:c# connector nanosecond support

* [TD-4944]:c# connector nanosecond support

* [TD-4944]:c# connector nanosecond support fix indent

* [TD-3880]<fix>: C# driver test miss unsigned type.

* [TD-3880]<fix>: C# driver test miss unsigned type.

also modify other files as what  TD-3204 did.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

for develop branch.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

* [TD-3877]<fix>: C# query result determination mechanism changed.

* [TD-3877]<fix>: C# query result determination mechanism changed.

change taosdemo and C#checker.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

Added unsigned integer types and change taosdemo insert and select queries for these types.

taos define | taos sql | c#
--- | --- | ---
UTINYINT | TINYINT UNSIGNED | `byte`
USMALLINT | SMALLINT UNSIGNED | `ushort`
UINT | INT UNSIGNED | `uint`
UBIGINT | BIGINT UNSIGNED | `ulong`
TINYINT | TINYINT | `sbyte`

Note: also change the tinyint value type to C# `sbyte`(the right signed one byte type) in this pr.

update README.md

support multithread create table and insertion.