fix: missing Json::Value forward decls

Author: qudix

include/RE/P/PipboyCommand.h

@@ -1,5 +1,10 @@
 #pragma once
 
+namespace Json
+{
+	class Value;
+}
+
 namespace RE
 {
 	class PipboyCommandResult;

include/RE/P/PipboyCommandResult.h

@@ -1,5 +1,10 @@
 #pragma once
 
+namespace Json
+{
+	class Value;
+}
+
 namespace RE
 {
 	class __declspec(novtable) PipboyCommandResult