Set up CI with Azure Pipelines

[skip ci]

Author: davidbritch

azure-pipelines.yml

@@ -0,0 +1,32 @@
+# Xamarin.iOS
+# Build a Xamarin.iOS project.
+# Add steps that install certificates, test, sign, and distribute an app, save build artifacts, and more:
+# https://docs.microsoft.com/azure/devops/pipelines/languages/xamarin
+
+trigger:
+- master
+
+pool:
+  vmImage: 'macos-latest'
+
+steps:
+# To manually select a Xamarin SDK version on the Microsoft-hosted macOS agent,
+# configure this task with the *Mono* version that is associated with the
+# Xamarin SDK version that you need, and set the "enabled" property to true.
+# See https://go.microsoft.com/fwlink/?linkid=871629
+- script: sudo $AGENT_HOMEDIRECTORY/scripts/select-xamarin-sdk.sh 5_12_0
+  displayName: 'Select the Xamarin SDK version'
+  enabled: false
+
+- task: NuGetToolInstaller@1
+
+- task: NuGetCommand@2
+  inputs:
+    restoreSolution: '**/*.sln'
+
+- task: XamariniOS@2
+  inputs:
+    solutionFile: '**/*.sln'
+    configuration: 'Debug'
+    buildForSimulator: true
+    packageApp: false