Issue Summary

Guest users from Azure are unable to configure the integration between Jira and Azure devops using azure devops for Jira official

The requirement for a user to do so is stated here. 

However the current logic for discovering available organisation for an Azure DevOps user is

1. Look for the `Public Alias` for the current authenticated user on Azure DevOps side.
   • Exact API used is GET https://app.vssps.visualstudio.com/_apis/profile/profiles/me (See API doc)
2. Use the public Alias found above to list all accounts where the current authenticated user is a member of. 
   • Exact API used is GET https://app.vssps.visualstudio.com/_apis/accounts?memberId=<publicAlias> (See API doc)

The above 2nd call results empty for the Guest users and therefore the available Orgs are not shown for a Guest user when performing the integration steps.

This FR is to provide means for the azure devops for Jira official to provide means to allow a guest user for integrating Azure with Jira.