Framework Model Supported Security Types

[AlexCatarino]

Expected Behavior

We have a standard way to flag that a framework model doesn't support certain security types. For example, BrokerageModel has CanSubmitOrder.

Actual Behavior

For example, if an alpha model doesn't handle options, it shouldn't try to generate insights.

Potential Solution

Implement CanSubmitInsight(Symbol) to be called in Update or RegisterSecurity(Symbol) to be called in OnSecuritiesChanged to filter out unsupported assets.

Checklist

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