Use version of external package with fixes (microsoft#2315)

* Use patched version of TestPlatform.Extensions (microsoft#2283)

* Use another patched version of TraceDataCollector

* Bump up patched nuget version to avoid caching issues

Use version of external package with fixes (microsoft#2315)

* Use patched version of TestPlatform.Extensions (microsoft#2283)

* Use another patched version of TraceDataCollector

* Bump up patched nuget version to avoid caching issues

Revert "Use patched version of TestPlatform.Extensions (microsoft#2283)…

…" (microsoft#2307)

This reverts commit 3ae0859.

Use patched version of TestPlatform.Extensions (microsoft#2283)

Test run parameter added as part of CLI runsettings args (microsoft#2251

)

* test run parameter added as second class argument

* regex is used to match test run paramterer node

* added exception for invaild test run parameter argument

* regex constants moved to constants

* unit tests are added for regex pattern match

* added special character test cases

* formatted

* resource string is changed

* formatted

Initialize only coverlet data collector (microsoft#2274)

Coverlet in-process collector is not loaded for version > 1.0.0 (micr…

…osoft#2221)

Add missing discovery cancel implementation (microsoft#2227)

* Revert "Implemented cancellation of individual source files discovery (microsoft#2134)"
This reverts commit 8e6f70f.

* Calling close instead of endsession to make sure we kill the test host in case it does not exit

Users/shreyas r msft/added env var support for blame results director…

…y path (microsoft#2216)

* Added env var support to blame test results directory path and fixed blame aborting without killing the test host process on hang timeout when there is an error with dump

* Added tests

Changing the priority for Ngen for testhost (microsoft#2182)