Loading all answers from drop
Nice thanks for the change !
This looks all good to me

Before we merge can you just update the dataset_infos.json file of drop ? You can do it by running
```
datasets-cli test ./datasets/drop --all_configs --save_infos --ignore_verifications
``` Done!
Hello all,

I propose this change to the DROP loading script so that all answers are loaded no matter their type. Currently, only "span" answers are loaded, which excludes a significant amount of answers from drop (i.e. "number" and "date").

I updated the script with the version I use for my work. However, I couldn't find a way to verify that all is working when integrated with the datasets repo, since the `load_dataset` method seems to always download the script from github and not local files.

Note that 9 items from the train set have no answers, as well as 1 from the validation set. The script I propose simply do not load them.

Let me know if there is anything else I can do,
Clément