Change conversion to PPP (Purchasing power parity) on experimental feature.

[Miffael]

Change conversion to PPP (Purchasing power parity) on experimental feature.
Right now, the conversion of currency units is done through a regular exchange rate service, which is updated every 2 days, right?
Instead of exchange rate, we want the conversion to be done as PPP
Jasper explains in this document how to get the file that should be used for converting the currency amounts through PPP.
https://docs.google.com/document/d/1vk7lw1o-kAC-uzdHdQHyEi-9whvkE8I3MUVysvjVi58/edit#heading=h.9ufnjxjvlz39
Let me know if you have any questions