Run default addressables build conditionally (#231)

* Add asmdef and Addressable content build in the builder

* Move asmdef content into its own directory

* Mark UnityBuilderAction as Editor-only

dist/default-build-script/Assets/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs

@@ -0,0 +1,50 @@
+using System;
+using UnityEditor;
+using UnityEditor.Build.Reporting;
+
+namespace UnityBuilderAction.Reporting
+{
+  public class StdOutReporter
+  {
+    static string EOL = Environment.NewLine;
+
+    public static void ReportSummary(BuildSummary summary)
+    {
+      Console.WriteLine(
+        $"{EOL}" +
+        $"###########################{EOL}" +
+        $"#      Build results      #{EOL}" +
+        $"###########################{EOL}" +
+        $"{EOL}" +
+        $"Duration: {summary.totalTime.ToString()}{EOL}" +
+        $"Warnings: {summary.totalWarnings.ToString()}{EOL}" +
+        $"Errors: {summary.totalErrors.ToString()}{EOL}" +
+        $"Size: {summary.totalSize.ToString()} bytes{EOL}" +
+        $"{EOL}"
+      );
+    }
+
+    public static void ExitWithResult(BuildResult result)
+    {
+      if (result == BuildResult.Succeeded) {
+        Console.WriteLine("Build succeeded!");
+        EditorApplication.Exit(0);
+      }
+
+      if (result == BuildResult.Failed) {
+        Console.WriteLine("Build failed!");
+        EditorApplication.Exit(101);
+      }
+
+      if (result == BuildResult.Cancelled) {
+        Console.WriteLine("Build cancelled!");
+        EditorApplication.Exit(102);
+      }
+
+      if (result == BuildResult.Unknown) {
+        Console.WriteLine("Build result is unknown!");
+        EditorApplication.Exit(103);
+      }
+    }
+  }
+}

dist/default-build-script/Assets/Editor/UnityBuilderAction/Reporting/StdOutReporter.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: e59b491a4124442ea7277f76761cdc8a
+timeCreated: 1587503545