Lmon_auth: Added functions

Added functions for add, edit, delete groups
Issue #11: Added functions

1. Added the ability to add, edit, delete groups.
2. Added the ability to view user info.
Lmon Lib: minor changes
Issue #11: Added functions

1. Added the ability to view and edit check types.
2. Added the ability to view and edit check periods.
3. Added the ability to view and edit alert types.
4. Settings group 'lmon' rename to 'monitoring'.