Add Support for "Access to alerts"

[nnordrum]

Prerequisites:

• Is the functionality available in the GitHub UI? If so, please provide a link to information about the feature. /settings/security_analysis

• Is the functionality available through the GitHub API? If the functionality is available, please provide links to the API documentation (https://developer.github.com/v3/) as well as the Octokit documentation (https://octokit.github.io/). I'm not sure if there's an API that will do this (have an open Issue with GHE support; will update this issue with response).

• If the functionality is not yet available in the API, it would be helpful if you contacted support (https://support.github.com/) or posted in the Community Forum (https://github.community/). Please include a link to the forum post if you create one or a copy of the response from support.

New Feature

Please describe the desired new functionality: Add Support for "Access to alerts"

something like (ala restrictions):

  alerts:
    teams:
      - a
      - b
    users:
      - c
      - d

[dgokcin]

I am also interested in this feature. Is this supported or are there any plans to support this? thanks!