feat: add support for TextMeshPro, including <font> and <sprite> tags

Author: mob-sakai

Assets/Demos/TextMeshPro Support/CarterOne-Regular SDF.asset

@@ -0,0 +1,74 @@
+#if UNITY_EDITOR
+using System.Diagnostics;
+using System.Text;
+using UnityEditor;
+using UnityEngine;
+using Debug = UnityEngine.Debug;
+
+internal static class ImportSample
+{
+    [MenuItem("Development/Import TMP Support V1", false, 2001)]
+    private static void ImportTMPSupportV1()
+    {
+        Run("TextMeshPro Support");
+    }
+
+    [MenuItem("Development/Import TMP Support V2", false, 2002)]
+    private static void ImportTMPSupportV2()
+    {
+        Run("TextMeshPro Support (Unity 6)");
+    }
+
+    [InitializeOnLoadMethod]
+    private static void ImportSampleOnLoad()
+    {
+#if UNITY_2023_2_OR_NEWER
+        ImportTMPSupportV2();
+#else
+        ImportTMPSupportV1();
+#endif
+    }
+
+    private static void Run(string sample)
+    {
+        var p = new Process()
+        {
+            StartInfo = new ProcessStartInfo()
+            {
+                Arguments = $"import-tmp-support.sh '{sample}'",
+                CreateNoWindow = true,
+#if UNITY_EDITOR_WIN
+                FileName = @"C:\Program Files (x86)\Git\bin\bash.exe",
+#else
+                FileName = "/bin/bash",
+#endif
+                RedirectStandardError = true,
+                RedirectStandardOutput = true,
+                WorkingDirectory = $"{Application.dataPath}/..",
+                UseShellExecute = false
+            },
+            EnableRaisingEvents = true
+        };
+
+        p.Exited += (_, __) =>
+        {
+            var result = new StringBuilder();
+            var stdout = p.StandardOutput.ReadToEnd();
+            result.Append("stdout: ");
+            result.Append(stdout);
+            result.AppendLine();
+            result.Append("stderr: ");
+            result.Append(p.StandardError.ReadToEnd());
+            Debug.Log(result);
+
+            if (p.ExitCode == 0 && stdout.StartsWith("Imported: "))
+            {
+                var path = stdout.Replace("Imported: ", "").Trim();
+                AssetDatabase.ImportAsset(path, ImportAssetOptions.ImportRecursive);
+            }
+        };
+
+        p.Start();
+    }
+}
+#endif