Add Json source generation

src/Alma.Abstraction/Services/IConfigurationFileReader.cs

@@ -1,6 +1,13 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
 namespace Alma.Services;
 
 public interface IConfigurationFileReader
 {
-    public Task<(T? Result, string? FileName)> DeserializeAsync<T>(string fileNameWithoutExtension, string? extension = null) where T : class;
+    public Task<(T? Result, string? FileName)> DeserializeAsync<T>(
+        string fileNameWithoutExtension,
+        Func<JsonSerializerOptions, JsonSerializerContext> contextGenerator,
+        string? extension = null)
+    where T : class;
 }