Fix Issue with Scenario Outline Data Containing Parenthesis

[ocsurfnut]

We found an issue when the scenario outline examples included () characters the Regex match did not work correctly, and the scenario was flagged as inconclusive. Adding some \ escaping fixed the issue.

[dirkrombauts]

Thanks for this contribution.

I try to follow a strict test-first policy for new contributions to the .NET code, so I would like to ask you to provide unit tests as well. I added a new section to the CONTRIBUTING.md file to describe what I expect. If you have any questions after reading it, please ask me and I will try to explain more clearly.

[ocsurfnut]

I've included the new test results from pickles-testresults (see PR picklesdoc/pickles-testresults#14) as well as the unit tests and implementation to make them pass. Hopefully this makes the PR more complete.

[dirkrombauts]

This is exactly the way I wanted it! Two more additions will make it perfect:

• Yesterday I introduced a new test result provider, VsTest. Please add a method to its derivation of StandardTestSuite as well. You'll need to rebase your branch on the current develop branch.
• Please add an entry to CHANGELOG.md, under the Unreleased header in a section called "Fixed".

If you have merge issues with the test result files: overwrite them with your version :-)

[ocsurfnut]

• added implementation and tests for VsTest result provider.
• added entry to CHANGELOG.md.

[dirkrombauts]

Thanks - it's bedtime in my time zone so I will look into this tomorrow. Based on our collaboration so far I think it will be fine, and I'll release a new version of Pickles in time for your next work day :-)

[dirkrombauts]

Many thanks!

[dirkrombauts]

Released in v2.4.1.