Add JIRA integration to VS-extension and WPA-plugin projects

I’ve added Jira integration to WindowsPerf project. This ticket adds Jira integration to:

• https://gitlab.com/Linaro/WindowsPerf/vs-extension

• https://gitlab.com/Linaro/WindowsPerf/wpa-plugin

projects.

Go to https://gitlab.com/Linaro/WindowsPerf/$PROJECT/-/settings/integrations to see integrations settings.

Note: I’ve also added to Settings → Merge reguest Jira integration so now users must specify WPERF-x in merge request title if they want merge to happen.