Allow setting commit status using personal access code.

[a-t-0]

• Determine what the minimal permissions need to be to set the build status of a commit.

  • Do this for a personal access token.
  • Do this for am ssh key. (This is moved into a separate issue: Allow setting GitHub commit status using ssh key. #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: Allow setting GitHub commit status using ssh key. #81)

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

• Call this method to set the GitHub personal access token at the start of the code.

• Create method to verify commit build status setting ability.

• Call method to verify commit build status setting ability, after creating the token.