Add a script `check-all.sh` to check all examples in `example-archive`

[septract]

This PR:

• Adds a script check-all.sh that runs check.sh on listed subdirectories in example-archive
• Moves examples so that they pass check.sh

Rationale: the current cerberus CI script here only runs a subset of the example directories. As a result, several examples have been missed. The check-all.sh script should be a more robust way of handling this since we can just update it without modifying the cerberus repo.

Note that new subdirectories must be added to the list embedded into check-all.sh

[septract]

@dc-mak once you have reviewed and merged this, can you modify this script in the cerberus repo to point to it?