新增Config供过滤输出以及将来的其他功能使用

Signed-off-by: Eicy <im@crash.work>

Config/Configuration.cs

@@ -0,0 +1,44 @@
+using Debugger;
+using Newtonsoft.Json;
+
+namespace Shrink.Config;
+
+public struct Config
+{
+    public LogLevel LogLevel;
+
+    public Config(LogLevel logLevel)
+    {
+        LogLevel = logLevel;
+    }
+}
+
+public class Configuration
+{
+    private static readonly Lazy<Configuration> _instance = new(() => new Configuration());
+    public static Configuration Instance => _instance.Value;
+    private const string ConfigFilePath = "Config.json";
+
+    public Config Config;
+
+    private Configuration()
+    {
+    }
+
+    public async Task Init()
+    {
+        if (!File.Exists(ConfigFilePath))
+        {
+            await Save();
+        }
+        else
+        {
+            Config = JsonConvert.DeserializeObject<Config>(await File.ReadAllTextAsync(ConfigFilePath));
+        }
+    }
+
+    public async Task Save()
+    {
+        await File.WriteAllTextAsync(ConfigFilePath, JsonConvert.SerializeObject(Config));
+    }
+}