Adding support for status code matching

[madhulikamitra]

Checklist

Before making a feature request, I have:

• Searched the issues to check that this feature hasn't been requested before
• Checked the documentation to see if it is possible to do what I want already

Feature description

Kindly add support for status code matching . Refer -https://github.com/pact-foundation/pact-js/pull/1102/files where this work was already going.

Use case

We have requests returning 200 and 201 , and we do not necessarily want to add provider states, so having state matching will simplify contract tests for us

[mefellows]

Thanks! Did you want to have a go based on the linked PR to add the feature?