title: How to configure independent .xcconfig for every Configuration(Debug, Release) in each target on a project with CocoaPods added
body: <p>I have a project which supports multiple Brands (used <em><strong>targets</strong></em> to configure appicon, Launch Screen .., etc) and each targets needs multiple environments where am using <em><strong>Configuration</strong></em>(Debug, Release) with schemes for every configuration.</p>
  <p>Now to add environment variables am using .xcconfig files which am not sure how to configure for every target. The Configuration on Project level in Xcode has Cocoapods configured.</p>
  <p><strong>NOTE:</strong> While pod install, it shows warning in terminal to include pods config data into my custom config file. Any easy way to achieve this ?</p>