More Optimisations - EA Update v0.3.0.42

Another little roundup of optimisations for the weekend. Mainly issues with very large space stations.

• Improve: MMB hold for drag camera should be quicker
  
• Improve: No power indicator on items caused fps slow down.
  
• Improve: Droid job check reduce checks on lower power, none on zero power.
  
• Improve: User repair check, do quick range test before lookups
  
• Improve: Reduce next to destination checks on user repair.