Utility class for password generation and checking.
This is utility class for password generation and checking according to custom
password policy rules.
Password characters may include several subsets of characters: letters (latin and utf-8 as well),
digits, symbols. This sets of characters are fully customizable as well as other
password generation configuration params: min_length, letters_count, capitals_count,
Default password policy check rule is min_length. Another custom ones may be added
to class instance by means of regular expressions. See unit test file for usage
Unit test provided in ../tests/ directory.
Short usage example provided in ../tests/example.php file. Also see unit test file
for possible configuration values
Public methods usage: see appropriate doc comment.