Stargazer (#6)

* Radius. Block if (BUILD_MOD_RADIUS) added.

* Radius. Catalog radius with radius.h and radius.cpp files added.

* Declaration of methods GetVersion, SendMessage, SetUsers, Start added.

* Definition of method SendMessage added.

* The option for BUILD_MOD_RADIUS added.

* Header files <string>, <vector>, <list> added. Virtual methods Start,
Stop declaration added. Private methods AddUser, DelUser, GetUser,
UpdateUserAuthorization added. Class member variable errorStr, users,
userList, isRunning, m_conns, m_onAddUserConn, m_onDelUserConn added.

* Header files <functional>, "stg/user.h" added. Overriding virtual
methods Start, Stop added.

* Private methods SetUserNotifiers, UnSetUserNotifiers declaration added.

* Header file <cassert> added. Definition methods GetUser, AddUser, DelUser,
UpdateUserAuthorization added.

* Unnecessary block private removed. Unnecessary header files removed.

* Unnecessary methods removed. Unnecessary header files removed.

* Overriding virtual methods Start, Stop, Reload, IsRunning, ParseSettings, GetStrErroor,
GetStartPosition, GetStopPosition, SendMessage added. Class member
variable errorStr, isRunning added.

* Definition of methods Start, Stop, SendMessage removed.

* Header file <string> added. The functions PrintHelp, PrintVersion added.
Parsing command line parameters added. The parameter of function settings
when it call changed.

* Radius. Variable bool noDaemon added. Parameter -f/--f added to parsing
command line. The call of function ForkAndWait changed - it is called if the variable
noDaemon is false.

* Radius. Command line parameter 'path' value fixed in the function
PrintHelp. Parsing command line parameters fixed. The key
-f/--foreground added to parsing command line parameters.

* Radius. Return value in the function GetVersion changed.

* Radius. Unnecessary check 'argc = i + 2' removed from parsing command
line parameters.

* The macro NO_DAEMON removed. The logic driven by the macro changed to
command line argument f analysis.

* Radius. The check variable noDaemon added when create function call.

* Radius. The variable startFile definition moved to block if(!noDaemon)
in main function.