IPA_SDB -- IPA simple database module

Main features:
- Distribution consists of database ipa_db_sdb(8) module, statistics
  ipa_st_mod(8) module and ipa_sdb_dump(8) utility;
- Modules completely support dynamic and static rules, limits and
  thresholds;
- All database files are stored in own record based database formats;
- Formats of database files are machine architecture independent;
- Sizes of database records are relatively small (binary data formats);
- Access to statistics can be granted accordingly to the user group;
- The ipa_sdb_dump(8) utility converts ipa_sdb(5) database files to text
  representation and back.