Microsoft Graph

Gets an OAuth access token for the Microsoft Graph API.

Target: HTTP Endpoint for "login.microsoftonline.com" with no path

Account Key: HTTP Basic Authentication with your client ID as the username and secret as the password

Steps:
[] Build the request payload
[] Request a token from the API
[] Check if the request was successful:
[]> If it was, extract the token and set the output variables
[]> If it wasn't, output an error

More information about this API: https://docs.microsoft.com/en-us/graph/auth-v2-service?view=graph-rest-1.0#4-get-an-access-token