make NAME field non-optional for Gear, Tome, Charm

src/errorfr/mod.rs

@@ -42,4 +42,8 @@ pub enum Errorfr {
     /// unable to copy (write in) file content
     #[error("Error 3.4: Download successful, but unable to write to file.")]
     JsonDlReqFileWriteFail,
+
+    /// Name value was not found in json
+    #[error("Error 3.4: \"Name\" field was not found in the json (required for Gear, Tome, Charm)")]
+    JsonNotFoundName
 }

src/main.rs

@@ -135,6 +135,9 @@ fn cook(
             if let Some(real_name) = json_config.name {
                 encode_namedata(&mut fr_params, &real_name)
             }
+            else {
+                return Err(Errorfr::JsonNotFoundName)
+            }
         }
         _ => {}
     }