Add support for algorithm parameters

[mlojewski-me]

Developed on: https://github.com/nextcloud/user_sql/tree/feature/issue%2346

In settings admin panel add hash algorithm options eg.

• CryptBlowfish -> cost,
• CryptArgon2 -> memory cost, time cost, threads
• ...

Now workaround is to change it in code (constructor).

TODO:

• Add dynamically generetaed numer fields in admin panel when choosing appropriate hash (Hash interface should now return array with name, visible name, default value and range - new method)
• Add saving parameters in database
• Add verifying new parameters range when saving configuration
• Check and use these parameters when creating new hash instance
• Add description of parameters in readme
• Update changelog

[poVoq]

Maybe an option to specify the php hash() function's algorithm would also be nice?
See: http://php.net/manual/en/function.hash.php

I am currently trying to get a site working that uses the hash() 'whirlpool' algorithm and am unsure where to start modifying the code.

[KrystinaMir]

Hello! After activating the add-on in the logs indefinitely:

Debug | user_sql | The application properties has been loaded.
Warning | user_sql | There's no distributed cache available, fallback to null cache. |

How to fix! Thanks in advance for the answer!