Nathan Harris authored Jun 12, 2019 and Nathan Harris committed Jul 02, 2019

Motivation:

During SSWG review, feedback was provided on the API design of the `RESPValueConvertible.init` signature and how it should appropriately follow Swift Design Guidelines regarding labels.

Modifications:

`RESPValueConvertible.init(_:` is now `RESPValueConvertible.init(fromRESP:)`.

Result:

There should be more clarity at the call site when initializing a type from a `RESPValue`.

This contributes to #47