Started implementing VDiskFile class.

For now only list() is implemented and not well tested yet. This class
is inspired by java.io.File. However, it does not extend it as there
are some problems with the implementation of java.io.File
For easier debugging inside Eclipse removed use of java.io.Console.

CommandLineInterface uses System.in and System.out again as in the old
days. Eclipse does not start the JVM the right way so there is no
java.io.Console available. Now the CLI can be started inside Eclipse
without problems.
Implemented create, load, stop and unload commands.
Added new command "list" that will list members of some directory.

Commands: list, ls, dir for now.