Add: secsweep.sh - Perform a sweep on all partitions

Checks for the following:

   a. World-writable directories with sticky bit set.
   b. Unauthorized world-writable files.
   c. SUID/GUID executables.
   d. Files with not owners.
   e. Users with no password.
   f. Legacy + (NIS map inserts) entries.
   g. UID 0 accounts.