[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.HeadlessLoader/ResourceLoader.cs

@@ -0,0 +1,42 @@
+using System.Collections.Generic;
+using System.IO;
+using System.IO.Compression;
+using System.Linq;
+using Mono.Cecil;
+
+namespace AquaMai.Config.HeadlessLoader;
+
+public class ResourceLoader
+{
+    private const string DLL_SUFFIX = ".dll";
+    private const string COMPRESSED_SUFFIX = ".compressed";
+    private const string DLL_COMPRESSED_SUFFIX = $"{DLL_SUFFIX}{COMPRESSED_SUFFIX}";
+
+    public static Dictionary<string, Stream> LoadEmbeddedAssemblies(AssemblyDefinition assembly)
+    {
+        return assembly.MainModule.Resources
+            .Where(resource => resource.Name.ToLower().EndsWith(DLL_SUFFIX) || resource.Name.ToLower().EndsWith(DLL_COMPRESSED_SUFFIX))
+            .Select(LoadResource)
+            .Where(data => data.Name != null)
+            .ToDictionary(data => data.Name, data => data.Stream);
+    }
+
+    public static (string Name, Stream Stream) LoadResource(Resource resource)
+    {
+        if (resource is EmbeddedResource embeddedResource)
+        {
+            if (resource.Name.ToLower().EndsWith(COMPRESSED_SUFFIX))
+            {
+                var decompressedStream = new MemoryStream();
+                using (var deflateStream = new DeflateStream(embeddedResource.GetResourceStream(), CompressionMode.Decompress))
+                {
+                    deflateStream.CopyTo(decompressedStream);
+                }
+                decompressedStream.Position = 0;
+                return (resource.Name.Substring(0, resource.Name.Length - COMPRESSED_SUFFIX.Length), decompressedStream);
+            }
+            return (resource.Name, embeddedResource.GetResourceStream());
+        }
+        return (null, null);
+    }
+}