Add REST client module and enhance parallel test support

Introduced a new REST client module and updated configurations in `pom.xml` and `.gitmodules`. Enhanced server options and request body handling with additional configuration. Added parallel request tests to verify REST endpoints' concurrency support and response validity.

Author: GedMarc

src/main/java/com/jwebmp/core/base/angular/client/services/interfaces/INgDataType.java

@@ -590,10 +590,6 @@ default List<NgComponentReference> renderFieldReference(String fieldName, Class
         }
         else if (Collection.class.isAssignableFrom(fieldType) || fieldType.isArray())
         {
-            if (fieldType.isArray())
-            {
-                System.out.print("field is array - ");
-            }
             if (field.getGenericType() instanceof ParameterizedType)
             {
                 var arguments = ((ParameterizedType) field.getGenericType()).getActualTypeArguments();
@@ -622,14 +618,6 @@ else if (arg0 instanceof Class<?> && !arg0.equals(Object.class) && !arg0.equals(
                 }
             }
         }
-   /*     else if (fieldType.isArray())
-        {
-            //get generic type
-            String genericType = fieldType.arrayType()
-                                          .getCanonicalName();
-            appendBasicFieldType();
-            renderFieldReference(fieldName, fieldType.arrayType(), field, true);
-        }*/
         return refs;
     }