Defined the first option and command for the upcoming staradmin command-line and implemented the first version of the usage message and parsing of given arguments.
Made CommandLine Option and Command classes and properties public to allow them to be used by the staradmin client.
Made staradmin.exe support 'staradmin --help'
Added ICommand interface to staradmin, abstracting something that is possible for the staradmin CLI application to execute.
Added new class CommandFactory to staradmin. This class will create real commands based on given input.
Adapted staradmin Program class to the new command infrastructure, now using the command factory to create commands that are to be executed.