Scenario expansion

Mostly just adding stuff that I missed in the initial PR. 

-Allow forced/forbidden traits in scenarios: Done
-Limit start location choices based on scenario : In progress
-Various flags and starting conditions.
-Add more scenarios
I was envisioning this guy being a lab-only scenario from the start, i.e. the tradeoff for starting with mutations is the disadvantageous starting location.
What is the balance factor, does this disallow traits not on the list?