Bind enegry costs to ship's reactor

[ironkayman]

• Introduce reactor item to loadout, consider its per-sec energy restoration
  • If ship's current energy capacity reches 0 or lower, disable firearms and movement until it restores

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• Primary weapon costs
  • per shot
• Thrusters during-movement costs
  • Constant per-second energy consumption so it requires powerfull enough reactor, with same of higher energy per sec production.
  • Moving L/R causes 1.2 more energy consumption

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• Power outage scenario and item outage pipeline