Cancelation and query duplication use

[SMAH1]

1. Support Cancelation
2. In linq2db, a DbCommand may be used multiple times.

linq2db

#489

#482

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 5.42169% with 157 lines in your changes missing coverage. Please review.

Project coverage is 77.30%. Comparing base (5a3e362) to head (97885f3). Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...ckHouse.Client/ADO/ClickHouseCancellableCommand.cs	4.93%	76 Missing and 1 partial :warning:
...e.Client/ADO/ClickHouseCancellableCommandRunner.cs	0.00%	71 Missing :warning:
...ient/ADO/ClickHouseCancellableConnectionFactory.cs	0.00%	7 Missing :warning:
...ouse.Client/ADO/ClickHouseCancellableConnection.cs	83.33%	1 Missing :warning:
ClickHouse.Client/ADO/ClickHouseCommand.cs	0.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #642      +/-   ##
==========================================
- Coverage   82.36%   77.30%   -5.06%     
==========================================
  Files         104      108       +4     
  Lines        2262     2428     +166     
  Branches      342      359      +17     
==========================================
+ Hits         1863     1877      +14     
- Misses        274      424     +150     
- Partials      125      127       +2     

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