Class Throttler implements the bruteforce protection for security actions in
Nextcloud.
It is working by logging invalid login attempts to the database and slowing
down all login attempts from the same subnet. The max delay is 30 seconds and
the starting delay are 200 milliseconds. (after the first failed login)
- remove testResetFormUnsuccessful as it is now splitted up in different test cases
- add testResetFormInvalidToken to check if timestamp and token are present
- add testResetFormInvalidTokenMatch to check if the saved token matches the provided
- add testResetFormExpiredToken to check if expiration detection works
- add testResetFormValidToken to check if detection of valid tokens works