Brief feature description

Marking any operation in iox containers which may fail and return bool as [[nodiscard]]

Detailed information

The idea here is pretty straightforward. Taking iox::vector for example, the API for push back returns bool as compared to void of std::vector::push_back.

Marking this code as [[nodiscard]] will raise compiler warnings in the event that a user is pushing back blindly onto an iox::vector and not handling the case where it fails. If the user has performed size checks at the beginning of a loop, they can simply use ...

std::ignore = my_iox_vector.push_back(value);

If the iceoryx team is aligned with this approach, I can put up a PR to add the nodiscards