d8dc03fadc
* Remove invalid symbols from symbol properties db * Add SymbolPropertiesDatabase.GetSymbolPropertiesList * Remove symbol list in BitfinexSymbolMapper * In EnsureCurrencyDataFeed fetch symbols from symbol properties database * Remove symbol list in OandaSymbolMapper * Remove unused code * Address review - Remove StringComparer.OrdinalIgnoreCase usage - Rename KnownSymbolStrings to KnownTickers