Add getAllData method

src/Request.php

@@ -42,6 +42,15 @@ public function get(string $key = '') : mixed {
 			return $this->data[$key] ?? NULL;
 		}
 
+		/**
+		 * Returns all body request arguments
+		 *
+		 * @return mixed All body arguments
+		 */
+		public function getAllData(): mixed {
+			return $this->data;
+		}
+
 		/**
 		 * Returns list of all the header items or a value of a specified key.
 		 * It will return NULL if the specified key can't be found.
@@ -227,4 +236,4 @@ private function parse_patch_and_put_request_data() : array {
 			}
 			return $data ?? [];
 		}
-	}
+	}