Scenario Difficulty Addition - EA Update v0.4.0.40

Just a couple of additions to the custom difficulty settings. You can now alter the difficulty of a scenario, which will alter win conditions in trading/mining/salvage/repair, and the frequency of scenario events in survival and combat. Have also added in item wear setting, that was set via seed previously, but now you can set as you wish.

Change notes:-

• Scenario difficulty added to customise difficulty settings.
  
• Scenario difficulty now alters scenario win conditions.
  
• Text to explain scenario/pirate/meteor settings in survival and combat scenarios.
  
• Item wear added to customise difficulty settings.
  
• Fix: typo in sandbox normal difficulty description.
  

Cheers,
Nick