Oh My Donation! (OMD)

• Added missing PONG for donatex.gg

• added DonateX.GG support

• Added GoodGame support

Fixed donatepay WSS.

• Added regional prices support. You can now specify three amounts for every donation: AmountRUR (Integer), AmountEUR (Floating-point), AmountUSD (Floating-point), Exact (Boolean), etc. Old format also works, so you can mix-and-match both formats in config.