Add historical_balance_lookup to NetworkOptionsResponse

[patrick-ogrady]

Is your feature request related to a problem? Please describe.
When running rosetta-cli check, the only argument that developers ever provide (to override the default) is --lookup-balance-by-block=false. This argument has caused a lot of confusion and the specification should be modified so that this can be inferred automatically from an implementation.

Describe the solution you'd like
Add something like historical_balance_lookup to NetworkOptionsResponse so that we can remove this setting entirely from rosetta-cli.
https://github.com/coinbase/rosetta-specifications/blob/439b881859b0982bb6baf34a9666db1018d419f9/api.yaml#L615-L627

Describe alternatives you've considered
We already provide a lot of documentation around this flag but it is often overlooked during implementation as there are so many other factors on developers' minds.