title: Can configure Jenkins pipeline with fastlane commands in xcode project file
body: <p>i'm working on iOS project which have continous intergration set up, i wanted to create a jenkins pipeline for my project to run automation steps to do build,test and etc operations. For the automation process i'm using Fastlane tool, so how can i sync up the jenkins pipeline with my Fastlane commands in it? I got few examples related to maven commands in pipeline file, as maven plugin option is already available in jenkins, similary how can i achieve the same for fastlane. I need few examples to write my declarative pipeline syntax in my xcode project jenkins file. </p>
  
  <p>Also i would like to know should the jenkinspipe line file should be inside the xcode project or it should be under the master branch ?</p>
  
  <p>Any help is appreciated. 
  Thanks.</p>