Add possibility to cap the money payout per second

[BrainStone]

A feature has been requested on Reddit to add the possibility to cap the total money payout per second.

The following options will be added:

• No cap:
  current behavior/no capping
• Soft cap:
  Payout can be lower but never higher. If it's higher players get a fraction of the max. The fraction is the money the would get divided by the total money all players would get
• Hard cap:
  The total payout is always the limit set in the config, if anyone is generating money. It's calculated the same way as above, even if that means players get more than they would by the plain calculation.

[LokeYourC3PH]

This would be nice so that people that just start can also get some money, as on my modpack I need to turn down the rate in which people earn money a lot due to some people having multiple Nuclear Reactors that have massive power outputs and a lot of PowerMoney blocks in order to generate heaps of cash.

[BrainStone]

You would achieve the exact opposite of what you want if you were to use that feature.
As mentioned in #13 you should increase your log base.