[IOI fork parity] cli script changes

[prandla]

• https://github.com/ioi-2024/cms/commit/9819be6ae2a1b44e87e16983ed23b2f213cdc168 "add option '--name' to ImportDataset"
• https://github.com/ioi-2024/cms/commit/c4bbefcde368470c08c8ac411285fa0ab4258f67 "Add -d/--default flag in cmsAddStatement to indicate is the statement is the default one"
• https://github.com/ioi/cms/commit/66bd28170a69d931927f5c0ef47ca905aacd2685 "cmsImportTask: Add -d/--dataset flag to indicate which dataset to upsert"

and some changes to cmsAddSubmission related to the ioisubmit tool:

• https://github.com/ioi-2024/cms/commit/acb638203dc87b5b80ec614971907fc3d6a1d09e "add the --lang parameter"
• https://github.com/ioi-2024/cms/commit/5979ed89b72da6d0c342bbaf58580195f4365361 "temporary hack for connecting to the ES"
• https://github.com/ioi-2024/cms/commit/ac1e42f4f85eae0942e0d0d11ee9c4a1d766d515 "check for submission limits"

the last two of which need to be implemented in a less hacky way.