Select an iOS target by name and API

Since UUIDs are different across installations, targeting by UUID makes it harder to provide convenience scripts, like an npm run command. We install simulators across a variety of OS versions, but the default simulator seems to be a random thing, often *not* the one you want developers to be using normally. This feature would allow us to standardize the default target on iOS.

For example:

```
native-run ios --app "dev.app" --target "iPhone 12 Pro,iOS 15.0"
```