Address PR comment - set ServerTypeInfo from ListItemFormUpdateValue class

Author: VincentFoulon80

src/Runtime/ServerTypeInfo.php

@@ -6,7 +6,6 @@
 use Office365\Complex;
 use Office365\GraphServiceClient;
 use Office365\SharePoint\ClientContext;
-use Office365\SharePoint\ListItemFormUpdateValue;
 
 class ServerTypeInfo
 {
@@ -75,9 +74,6 @@ public static function resolve($type)
                 $typeName = lcfirst($typeName);
             }
         }
-        elseif($type instanceof ListItemFormUpdateValue) {
-            if(is_null($namespace)) $namespace = "SP";
-        }
         elseif($type instanceof Complex){
             if(is_null($namespace)) $namespace = "microsoft.graph";
             $typeName = lcfirst($typeName);

src/SharePoint/ListItemFormUpdateValue.php

@@ -6,6 +6,8 @@
 namespace Office365\SharePoint;
 
 use Office365\Runtime\ClientValue;
+use Office365\Runtime\ServerTypeInfo;
+
 /**
  * Specifies 
  * the properties of a list itemfield (2) 
@@ -32,6 +34,12 @@ public function toJson()
         return $json;
     }
 
+
+    public function getServerTypeInfo()
+    {
+        return new ServerTypeInfo("SP", "ListItemFormUpdateValue");
+    }
+
     /**
      * Specifies 
      * the error message result after validating the value for the field (2).