Jeff Dahl

The [options pattern](https://learn.microsoft.com/en-us/aspnet/core/fundamentals/configuration/options?view=aspnetcore-7.0) simplifies configuration. When using a `settings.json` file, instead of configuring GoogleAds with the following three lines: ``` IConfigurationSection section = Configuration.GetSection("GoogleAdsApi"); GoogleAdsConfig config = new GoogleAdsConfig(section); GoogleAdsClient...

With minimal impact to the `Google.Ads.GoogleAds.Core` project (only adding two interfaces), this PR introduces the `Google.Ads.GoogleAds.Extensions.DependencyInjection` project. This new project can be packaged independently providing flexibility to include it only...