add easy language folder & link on normal helppage

public/img/icon-leichte-sprache.svg

resources/lang/de/help/easy-language/help-functions.php

resources/lang/de/help/easy-language/help-mainpages.php

...es/lang/de/help/easy-language/help-privacy-protection.php

resources/lang/de/help/easy-language/help-services.php

resources/lang/de/help/easy-language/help.php

resources/lang/de/help/help.php

resources/lang/en/help/easy-language/help-functions.php

resources/lang/en/help/easy-language/help-mainpages.php

...es/lang/en/help/easy-language/help-privacy-protection.php

resources/lang/en/help/easy-language/help-services.php

resources/lang/en/help/easy-language/help.php

resources/lang/en/help/help.php

resources/lang/es/help/easy-language/help-functions.php

resources/lang/es/help/easy-language/help-mainpages.php

...es/lang/es/help/easy-language/help-privacy-protection.php

resources/lang/es/help/easy-language/help-services.php

resources/lang/es/help/easy-language/help.php

resources/less/metager/pages/help.less

resources/views/help/easy-language/help-functions.blade.php