Support wildcard in filenames

[vagisha-nidhi]

Description

Support wildcard in filenames.
Wildcard character support using Microsoft.Extensions.FileSystemGlobbing

Usage

Wildcard supported: *(represent zero to many characters), **(to represent arbitrary directory depth)
Example: vstest.console.exe /path/to/project/tests/**.Tests/**/*.Tests.dll

We will also show the number of files matched with given pattern by default.

With detailed verbosity, the list of files will also be shown on the console

File matching verified on windows and linux.

Also, help text has been updated to incorporate the change

Related issue

#1663

[singhsarab]

    public void AddSource(string source)

Should we move this to the arg processor ?

---

Refers to: src/vstest.console/CommandLine/CommandLineOptions.cs:281 in 024860d. [](commit_id = 024860d, deletion_comment = False)

[vagisha-nidhi]

    public void AddSource(string source)

Should we move this to the arg processor ?

Refers to: src/vstest.console/CommandLine/CommandLineOptions.cs:281 in 024860d. [](commit_id = 024860d, deletion_comment = False)

We can't move the logic to processor because we'd have to duplicate the logic in both RunTestsArgProcessor and ListTestsArgProcessor.
ListTests takes test file as arguments. Example:

/listtests:"abc.dll"
-lt|--ListTests|/lt|/ListTests:<File Name>
      Lists all discovered tests from the given test container.

[singhsarab]

    public void AddSource(string source)

Should we move this to the arg processor ?
Refers to: src/vstest.console/CommandLine/CommandLineOptions.cs:281 in 024860d. [](commit_id = 024860d, deletion_comment = False)

We can't move the logic to processor because we'd have to duplicate the logic in both RunTestsArgProcessor and ListTestsArgProcessor.
ListTests takes test file as arguments. Example:

/listtests:"abc.dll"
-lt|--ListTests|/lt|/ListTests:<File Name>
      Lists all discovered tests from the given test container.

I thought this was handled by the test source argument processor ?

[vagisha-nidhi]

    public void AddSource(string source)

Should we move this to the arg processor ?
Refers to: src/vstest.console/CommandLine/CommandLineOptions.cs:281 in 024860d. [](commit_id = 024860d, deletion_comment = False)

We can't move the logic to processor because we'd have to duplicate the logic in both RunTestsArgProcessor and ListTestsArgProcessor.
ListTests takes test file as arguments. Example:

/listtests:"abc.dll"
-lt|--ListTests|/lt|/ListTests:<File Name>
      Lists all discovered tests from the given test container.

I thought this was handled by the test source argument processor ?

If there is no test source given and only /listtests:"abc.dll" this will be handled only by the listtests arg processor and test source arg processor will not be involved.

[singhsarab]

[mayankbansal018]

nit: use this with instance variables. #Resolved