Addition of Financial bases absolute risk stats

Addition of stats and unit tests.  Still need test for GainLossRatio.
The tests may be a bit sparse compared to what is required for a pull.
Will need to talk to Chrisoph about that.
Added GainLossRatio Tests

Added tests around GainLossRatio, but I still have some questions as
noted per test.
Updated financial calcs and unit tests to deal with NaN return
renamed file to match class name
Financial: tweaks, add to portable build
Merge branch 'financial'