Upgraded to DotNetCore 3.0 and created Windows and Linux executable for appauthentication.

   .\AuthApp.exe get-tokens

Avaiable options:

• --key or -k (Salesforce Consumer Key)
• --secret or -s (Salesforce Consumer Secret)
• --login or -l (Salesforce login url)
• --azure or -a (Azure Vault Url)
• --azureprefix or ax (Use Environment prefix for Azure vault)
• --configfile or -c (Specify configuration file)
• --verbose:debug or --verbose:information or --verbose:trave
• --usesecrets or us (Usually a Guid Id of the project that contains the secret)
• --environment or -e (Production, Development, Stage)
• --section or -sn (The root for the tools configuration the default is Salesforce)