Quick SiL Refactor

[marvin-steinke]

• Renamed Attributes:
  • _actor_infos_ts to_state_ts
  • _actor_infos to _state
• Added Attribute and Properties:
  • _time for current sim time, thanks @Impelon closes #208 => time to get _time
  • state to get _state
• Updated Methods:
  • _recv_data() to handle new state structure
  • refactored _get_*_ts() functions to share code in _get_ts_range()