* auth: add an interface for different authentication methods
* auth: pick inline feedback based on last active implementation
* config: move auth options to auth:<auth_impl>
BREAKING:
- general:pam_module -> auth:pam:module
- general:enable_fingerprint -> auth:fingerprint:enabled
- general:fingerprint_ready_message -> auth:fingerprint:ready_message
- general:fingerprint_present_message ->
auth:fingerprint:present_message
* auth: don't clear password input for fingerprint auth check
* fingerprint: checkAuthenticated when handling verfiy status
* Revert conditionally clearing the password input buffer
Makes sure the input field can show the fail text for fingerprint auth.
* auth: virtual instead of override, remove braces
* pam: join the thread
* auth: remove isAuthenticated and switch to a control flow based unlock
* auth: initialize authentication before aquiring the session lock
