implemented autocomplete feature

bin/commandLine/CommandLineController$1.class

bin/commandLine/CommandLineController$2.class

bin/commandLine/CommandLineController.class

bin/commandLine/_en.properties

bin/commands/CommandShortcuts.class

bin/commands/PossibleCommands.class

src/commandLine/CommandLine.java

src/commandLine/CommandLineController.java

src/commandLine/_en.properties

src/commands/CommandShortcuts.java

src/commands/PossibleCommands.java