Allow build.xcconfig in app/App_Resources/iOS/build.xcconfig

Author: PanayotCankov

lib/services/ios-project-service.ts

@@ -793,6 +793,12 @@ export class IOSProjectService extends projectServiceBaseLib.PlatformProjectServ
 				}
 			}
 
+			let appResourcesXcconfigPath = path.join(this.$projectData.projectDir, constants.APP_FOLDER_NAME, constants.APP_RESOURCES_FOLDER_NAME, this.platformData.normalizedPlatformName, "build.xcconfig");
+			if (this.$fs.exists(appResourcesXcconfigPath).wait()) {
+				this.mergeXcconfigFiles(appResourcesXcconfigPath, this.pluginsDebugXcconfigFilePath).wait();
+				this.mergeXcconfigFiles(appResourcesXcconfigPath, this.pluginsReleaseXcconfigFilePath).wait();
+			}
+
 			let podFolder = path.join(this.platformData.projectRoot, "Pods/Target Support Files/Pods/");
 			if (this.$fs.exists(podFolder).wait()) {
 				this.mergeXcconfigFiles(path.join(this.platformData.projectRoot, "Pods/Target Support Files/Pods/Pods.debug.xcconfig"), this.pluginsDebugXcconfigFilePath).wait();