- Added Cloneable deep clone source generator nuget package

- Configs are no cloned using generated clone, not by serializing/deserializing
- Arrays/Lists (collections in geneeral) are still not cloned properly
- Removed GetRawData from config as it is no longer needed, new clone is very fast
- Added ICloneable<T> which all configs implement
- Cleaned up config classes/code

src/NadekoBot/Modules/Xp/Common/XpConfig.cs

@@ -1,8 +1,11 @@
-using NadekoBot.Common.Yml;
+using Cloneable;
+using NadekoBot.Common;
+using NadekoBot.Common.Yml;
 
 namespace NadekoBot.Modules.Xp
 {
-    public sealed class XpConfig
+    [Cloneable]
+    public sealed partial class XpConfig : ICloneable<XpConfig>
     {
         [Comment(@"DO NOT CHANGE")] 
         public int Version { get; set; } = 2;