azureGetMergeRequestsApi likely returns nothing

[officeSpacePirate]

I am attempting to use this extension for Coverity Connect in Azure DevOps and when enabling bridge_coverity_automation_prComment, the extension is never able to find a PR. I believe I have figured out a better way to retrieve this data without affecting the interface:

1. In azure-service-client.ts on line 10, the string could be changed to /{0}/{1}/_apis/git/repositories/{2}/pullrequests/{3}?api-version={4}
2. Then starting on line 24, change to

      const endpoint = StringFormat(
        azureData.api.url.concat(this.azureGetMergeRequestsAPI),
        azureData.organization.name,
        azureData.project.name,
        azureData.repository.name,
        azureData.repository.pull,
        this.apiVersion

3. Add appropriate handling for when azureData.repository.pull == null; perhaps a log that tells the user it's required.

An alternative that would take more refactoring, but perhaps be simpler, would be to add the additional parameters supported by the Bridge CLI for Azure DevOps: SCM Information needed for “Adding Comments to Pull Requests” feature