Multiple platform management and bootup

[andreiolaru-ro]

• [ ] The platform's name should be it's identifier and may be different from the type, such that multiple platforms of the same type ca coexist; for simple cases, the default name may be the same as the type.
• [ ] decide on how to manage command line arguments considering we must have:
  • local-IP:port localContainerName
  • mainHost:port for a general configuration of main host
  • if there is a single platform, a simple configuration (besides main host and port) can be used
  • if there are multiple platforms, for each platform a [name,] type, main host and port and parameters must be specified
  • also scenario name, screen w and h
• some of these (except maybe screen w and h) must be configurable via scenario file as well
• [ ] must move specific platform configuration (including main host and port) to the platform node
• [ ] must be able to configure whether the current machine should start a simulation manager or not.