Currency and IMF Fixes

[Arcadyi]

• Currency value no longer goes beyond -99%
• Currency value growth more stable
• AI Monetary Policy ability improved
• AI no longer goes into deflationary crisis as often
• Starting currency values tweaked
• Superpowers and Great Powers now less likely to take IMF loans
• Bretton Woods less likely to collapse early
• Currency value percentage added to banks panel
• Central Bank list now ordered by currency value
• Added ability to adopt currencies(DEM, NZD, AUD)
• Currency alteration cooldown increased to 5 years
• Foreign Reserves conversion can no longer be negative
• Added IMR(IMF Reserve Currency) as main currency for transaction when using IMF
• Reduced starting IMF Reserves
• Expansionary/Contractionary monetary policy effect on treasury now scaled with income
• Pegged currencies no longer inherit money supply growth
• Having your currency bought notifies player
• GDP affects currency value
• Fixed monetary policy effects switched #499
• Fixed money supply can't increase once it hits 100% #486
• Fixed countries which has devalued currency, paying tribute in their own currency but the overlord getting it without conversion ? #477
• Fixed Currency cannot be Re/Devalued. #473
• Fixed Concessionary Loans to Strong Economies #468
• Fixed IMF Issues notifications appear when not in IMF #467
• Fixed JPY rapid appreciation #466
• Fixed AI spends far too little #465
• Fixed Peg target tooltip shows your target instead of actual peg target #497