This adds a manually implemented hostname check that is applied as an endpoint filter.
With the implemented filter, the validation rules are similar to those before Kestrel was introduced.
This fixes#5469
Added auth requirement on all endpoints.
Added SignIn-, Access- and Refresh-Tokens based on JWT.
Upgraded stored password to be based on PBKDF2.
Added default password assignment.
Updated logic to support auth-header and re-sign-in for tray-icon and web-ui.
Re-implemented everything using ASP.NET.
Changed some requests to use JSON instead of FORM data.
Some work towards deleting the FIXMEGlobal instance.
Auth is missing, XSRF does not work correctly.