Add in production bonus for high pop

[Todd248]

I tried to modify settings.txt to add in a production bonus for populations higher than 10000. I changed "Number Of Population Modifiers" to 17. I replaced item number 12 with:

Pop Modifier 12 Population Amount := 14999
Pop Modifier 12 Production Modifier Percent := 200
Pop Modifier 12 SY Rate Modifier Percent := 200
Pop Modifier 13 Population Amount := 24999
Pop Modifier 13 Production Modifier Percent := 225
Pop Modifier 13 SY Rate Modifier Percent := 225
Pop Modifier 14 Population Amount := 34999
Pop Modifier 14 Production Modifier Percent := 250
Pop Modifier 14 SY Rate Modifier Percent := 250
Pop Modifier 15 Population Amount := 44999
Pop Modifier 15 Production Modifier Percent := 275
Pop Modifier 15 SY Rate Modifier Percent := 275
Pop Modifier 16 Population Amount := 59999
Pop Modifier 16 Production Modifier Percent := 300
Pop Modifier 16 SY Rate Modifier Percent := 300
Pop Modifier 17 Population Amount := 2000000
Pop Modifier 17 Production Modifier Percent := 300
Pop Modifier 17 SY Rate Modifier Percent := 300

The final entry (17) must be present and the values for the percent modifier must be equal to the maximum percent gain allowed. If you leave it at 200 you will only get 100% modifiers even though you want 200%. This makes ring/sphere worlds more appealing IMHO.