Add test for monetary value parsing
Add test for monetary value parsing

Just-in-case sanity test for JSON spirit and AmountFromValue.
Also update rpc_format_monetary_values test to use ValueFromAmount,
so that ValueFromAmount is also tested.

syscoin/syscoin,syscoin/syscoin,Crowndev/crowncoin,syscoin/syscoin,domob1812/crowncoin,syscoin/syscoin,Infernoman/crowncoin,domob1812/crowncoin,syscoin/syscoin,Infernoman/crowncoin,Infernoman/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,domob1812/crowncoin,domob1812/crowncoin,syscoin/syscoin,domob1812/crowncoin,Crowndev/crowncoin,syscoin/syscoin,Infernoman/crowncoin,Infernoman/crowncoin,Crowndev/crowncoin,syscoin/syscoin,Infernoman/crowncoin,Crowndev/crowncoin,Crowndev/crowncoin