WebhookNotifier

[rmroc451]

• [X] Move base webclient calling to new WebhookNotifier
  • [X] Extend WebhookNotifier in DiscordNotifier, to do formating of payload only.
• [X] Add Settings UI Elements for webhook url
• [ ] create thread per host || save game name || nearest city || locomotive??
• [X] store in a settings file per host & save game name?
• [ ] Better console message parsing / formatting
• [ ] discord -> game interactions?