Imports of package apr1_crypt

PathSynopsis
github.com/tredoe/osutil/user/cryptPackage crypt provides interface for password crypt functions and collects common constants.
github.com/tredoe/osutil/user/crypt/commonPackage common contains routines used by multiple password hashing algorithms.
github.com/tredoe/osutil/user/crypt/md5_cryptPackage md5_crypt implements the standard Unix MD5-crypt algorithm created by Poul-Henning Kamp for FreeBSD.