Populate shell with first commands

[artavd]

Ports command:

• port list
• port show
• port open
• port close
• port add
• port remove

Emulator commands:

• emulator list
• emulator show
• emulator start
• emulator stop
• emulator add
• emulator remove

Execution commands:

• bind
• load
• connect

Task doesn't contain the real implementation of each command action. Mocks should be used instead.

[artavd]

Need to fully reuse controllers from implemented REST API. It would give ability to easy support both shell and REST commands.