title: Azure Pipelines to build multiple solutions in a single repository
body: <p>Is is possible to create a single YAML file to build multiple projects within my repository?</p>
  
  <p>I have a repo with 12 solutions, each with a minimum of 6 projects within them. The repository is quite complex and without going into why it was developed like this, each solution is a dependency in a larger product.</p>
  
  <p>Is it possible to build all of them with a single YAML file, instead of create a build pipeline for each of these projects? They need to be built in a certain order, as they are inter-dependent on one another.</p>
  
  <p>On our local TeamCity environment, we leverage off an .msbuild file to do this, but I cannot find a way in Azure DevOps to do this</p>