create new file system (based on Orchard)

zero.Core/FileStorage/PhysicalFileMeta.cs

@@ -0,0 +1,39 @@
+using Microsoft.Extensions.FileProviders;
+
+namespace zero.FileStorage;
+
+public class PhysicalFileMeta : IFileMeta
+{
+  /// <inheritdoc />
+  public string Path { get; }
+
+  /// <inheritdoc />
+  public string Name { get; }
+
+  /// <inheritdoc />
+  public string DirectoryPath { get; }
+
+  /// <inheritdoc />
+  public long Length { get; }
+
+  /// <inheritdoc />
+  public DateTimeOffset LastModifiedDate { get; }
+
+  /// <inheritdoc />
+  public bool IsDirectory { get; }
+
+  /// <inheritdoc />
+  public Dictionary<string, object> Properties { get; }
+
+
+  public PhysicalFileMeta(IFileInfo fileInfo, string path)
+  {
+    Path = path;
+    Name = fileInfo.Name;
+    DirectoryPath = path.Substring(0, path.Length - fileInfo.Name.Length).TrimEnd('/');
+    LastModifiedDate = fileInfo.LastModified;
+    Length = fileInfo.Length;
+    IsDirectory = fileInfo.IsDirectory;
+    Properties = new();
+  }
+}