[RF] AquaMai configuration refactor (#82)

更新了配置文件格式，原有的配置文件将被自动无缝迁移，详情请见新的配置文件中的注释（例外：`SlideJudgeTweak` 不再默认启用）
旧配置文件将被重命名备份，如果更新到此版本遇到 Bug 请联系我们

Updated configuration file schema. The old config file will be migrated automatically and seamlessly. See the comments in the new configuration file for details. (Except for `SlideJudgeTweak` is no longer enabled by default)
Your old configuration file will be renamed as a backup. If you encounter any bug with this version, please contact us.

AquaMai/AquaMai.Config/Migration/ConfigMigrationManager.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using AquaMai.Config.Interfaces;
+
+namespace AquaMai.Config.Migration;
+
+public class ConfigMigrationManager : IConfigMigrationManager
+{
+    public static readonly ConfigMigrationManager Instance = new();
+
+    private readonly Dictionary<string, IConfigMigration> migrationMap =
+        new List<IConfigMigration>
+        {
+            new ConfigMigration_V1_0_V2_0()
+        }.ToDictionary(m => m.FromVersion);
+
+    public readonly string latestVersion;
+
+    private ConfigMigrationManager()
+    {
+        latestVersion = migrationMap.Values
+            .Select(m => m.ToVersion)
+            .OrderByDescending(version =>
+            {
+                var versionParts = version.Split('.').Select(int.Parse).ToArray();
+                return versionParts[0] * 100000 + versionParts[1];
+            })
+            .First();
+    }
+
+    public IConfigView Migrate(IConfigView config)
+    {
+        var currentVersion = GetVersion(config);
+        while (migrationMap.ContainsKey(currentVersion))
+        {
+            var migration = migrationMap[currentVersion];
+            Utility.Log($"Migrating config from v{migration.FromVersion} to v{migration.ToVersion}");
+            config = migration.Migrate(config);
+            currentVersion = migration.ToVersion;
+        }
+        if (currentVersion != latestVersion)
+        {
+            throw new ArgumentException($"Could not migrate the config from v{currentVersion} to v{latestVersion}");
+        }
+        return config;
+    }
+
+    public string GetVersion(IConfigView config)
+    {
+        if (config.TryGetValue<string>("Version", out var version))
+        {
+            return version;
+        }
+        // Assume v1.0 if not found
+        return "1.0";
+    }
+}