Allow setting commit status using personal access code.

[a-t-0]

• [x] Determine what the minimal permissions need to be to set the build status of a commit.
  • [x] Do this for a personal access token.
  • [ ] Do this for am ssh key. (This is moved into a separate issue: #81)
• [ ] Allow passing an argument --hubcssh to let the user pick to set the build statuses using an ssh key. (This is moved into a separate issue: #81)

• [x] Allow passing an argument --hubcpat to let the user pick to set the build statuses using an personal access token.

  • [x] Call this method to set the GitHub personal access token at the start of the code.
  • [x] Create method to verify commit build status setting ability.
  • [x] Call method to verify commit build status setting ability, after creating the token.