修改 CloudProduct ImageCache 项目改为 插件

Directory.Build.targets

@@ -21,6 +21,10 @@
                 foreach (var file in Directory.GetFiles(plugin, "*", SearchOption.AllDirectories))
                 {
                     var relative = file.Substring(plugin.TrimEnd(Path.DirectorySeparatorChar).Length + 1);
+                    // Plugin settings are owned by the plugin even when identical to host settings.
+                    if (Path.GetFileName(file).StartsWith("appsettings", StringComparison.OrdinalIgnoreCase)
+                        && string.Equals(Path.GetExtension(file), ".json", StringComparison.OrdinalIgnoreCase))
+                        continue;
                     var shared = Path.GetFullPath(Path.Combine(host, relative));
                     // Only compare files below the host, outside its plugin subtree.
                     if (!shared.StartsWith(host.TrimEnd(Path.DirectorySeparatorChar) + Path.DirectorySeparatorChar, StringComparison.OrdinalIgnoreCase)