Add TODO about using try-with-resource

This would automatically close the BufferedReader after we are done
with it, but it also means that the JSON object we create is lost
when we exit the try() scope...

See: https://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html

src/main/java/org/cgiar/cgspace/ctasks/CountryCodeTagger.java

@@ -72,6 +72,7 @@ public class CountryCodeTagger extends AbstractCurationTask
             } else {
                 Gson gson = new Gson();
 
+                // TODO: convert to try: https://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html
                 BufferedReader reader = new BufferedReader(new InputStreamReader(this.getClass().getResourceAsStream(isocodesJsonPath)));
                 CountriesVocabulary isocodesCountriesJson = gson.fromJson(reader, CountriesVocabulary.class);
                 reader.close();