* Oanda default forex Market
- Use Oanda as default forex Market since it has more pairs.
- Remove FXCM data add Oanda equivalente data.
- Update unit and regression tests
* Address reviews
- Revert FXCM data removal
- Remove unrequired commented code
* Fix rebase
- When BacktestNodePacket has the inital `CashAmount` set we will clear
all existing cash amounts and set the account currency
- Adding more unit tests
- Adding `FreePortfolioValue` to be set after algorithm initialize based
on the `TotalPortfolioValue` and the `FreePortfolioValuePercentage`
- Updating regression tests
- Adding new regression test
- Adding check for minimum order value at `BuyingPowerModel`
- Adding new `SetAccountCurrency()` for backtesting. Has to be called
before adding any `Security` or calling `SetCash()`, else will throw.
- Adding new Non account currency unit tests for `CashBuyingPower`,
`SecurityPortfolioModel`, `SecurityMarginModel`,
`SecurityPortfolioManager`, `Future/OptionMarginBuyingPowerModels`
- Adding new C# regression test using `SetAccountCurrency()`, one for
`CashBuyingPowerModel` and one for `SecurityMarginModel`
- Adding new Py and C# basic regression algorithms using
`SetAccountCurrency()`
- `Options` and `Futures` will use not use `AccountCurrency` as quote
Cash.
- `SecurityBenchmark` value will be in account currency
Juan José D'Ambrosio