Add App Settings - Githubissues

Features

Added App Settings to Key Vault
Added new App Settings Page
- Ability to view secrets (by clicking button)
- Ability to edit and save secrets
- Ability to delete secrets
- Ability to add new secret
Key Master Turning On
- Added new logic to send all app settings to Azure Key Vault
- Deletes all App Settings form Web Config
Key Master Turning Off
- Downloads all app settings from the key vault and puts them into the web.config
- Deletes the stale app settings from the key vault