Added Day and Nighttime modifiers

1. During daytime units can see farther.
   
2. During Nighttime units accuracy and range drops slightly.
   

-Added Weather system

• Planets now have random weather.
  
• Weather affects the stats of your Units, Some weather types may also include special events.
  
• 9 New weather events
  
  • Calm - No weather
    
  • Rain - very Slight debuffs to vision and range
    
  • Heavy rain - slight debuffs to vision and range
    
  • Thick Fog - Heavy debuff to vision and range, Visual effect making it harder to see
    
  • Lightning Storm - Random lightning strikes which can stun buildings and Units.
    
  • Seismic Activity - Random earthquakes which deal high damage in an area.
    
  • Eclipse - Permanent nighttime, no visibility outside of unit vision; difficult
    
  • Eclipsed storm - Eclipse + Lightning Storm combined
    
  
  

Miscellaneous changes

-Added random planet rewards
Planet now have a range of rewards instead of fixed rewards.
Overall this results in a higher average scrap and tech reward.

-Added Hotkeys to the build menu

-Fixed a UI bug in the tutorial that in some circumstances made it impossible to complete

-Scout vision range increased by 10 meters