Software simulator

• The CarLang language now includes the new configuration options for controllers:
  • SoftwareSimulator type (HardwareEmulator or Direct (Native) )
  • TimeModel: Instant, Constant (per ECU cycle) or "Models" (uses the HardwareEmulator Computer models)
  • Cache configuration entries
• The new state of the language is documented in the readme.
• CoCos and tests are implemented for the new elements.

Requires the hardware_emulator merge