new method for modules

This version introduces multiple enhancements:

added method to return full module path and example of usage

Details of additions/deletions below:
--------------------------------------------------------------

Modified:   /BLUE_FRAMEWORK/packages/CORE/module_class.php
            -- Added --
                getModuleDir method that return full module path

Modified:   /BLUE_FRAMEWORK/modules/modul1/modul1.php
            -- Added --
                generate module path in module template

Modified:   /BLUE_FRAMEWORK/modules/modul1/layouts/layout1.html
            -- Added --
                module path example

Modified:   /BLUE_FRAMEWORK/modules/modul1/lang/modul1_pl-PL.php
            -- Added --
                module path example translation

Modified:   /BLUE_FRAMEWORK/modules/modul1/lang/modul1_en-GB.php
            -- Added --
                module path example translation