fix: MINLEN failing if over 12, added customization

[kyle-mckay]

Fixed:

• The Password Policy would only check if MINLEN was set to the default 12 and would fail any configurations with a higher MINLEN values. (Resolves [FAIL] Password Policy (minlen value is greater than 12) #32)

Added:

• Changed the log file creation behavior to separate the file and path variable.
• Added an option to chown the log path/reports (defaults to false). Does not chown the path if it already exists to prevent changing existing permissions.

Modified:

• Made configuration of thresholds and paths easier by using variables instead of static values
• Moved configuration variables to the top of the file
• Updated the README with configuration options