Stefano Raggi e379457757 Refactor option chain providers ...

- Moved provider implementations out of brokerages into their own classes
- Removed DefaultOptionChainProvider
- Added BacktestingOptionChainProvider and LiveOptionChainProvider
- Moved SetOptionChainProvider call from Engine to setup handlers

2017-08-02 22:43:15 +02:00

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Wrappers

Refactor option chain providers

2017-08-02 22:43:15 +02:00