Allow decoding Decodable type directly from Value

Summary: I noticed we are not converting value associated with response to the strong types requests recorded
This change will help to decode the value type later once we support the rest of plumbing (next commit)

Author: Sash Zats [email protected]

Sources/MCP/Base/Value.swift

@@ -400,3 +400,16 @@ extension String {
         }
     }
 }
+
+
+
+// MARK: - Decode specific type from Value
+
+public extension JSONDecoder {
+  func decode<T: Decodable>(_ type: T.Type, from value: Value) throws -> T {
+    guard let data = try? JSONEncoder().encode(value) else {
+      throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: [], debugDescription: "Failed to encode value"))
+    }    
+    return try self.decode(T.self, from: data)
+  }
+}