Draft: CPAlgorithms: add ignoreOR flag for MET
MET should be run on the input object collections without any OR cuts (a custom internal OR is applied). This is already enforced by the ordering of the config blocks in ConfigFactory (MET block before OR block), but it's not preventing a user from making a mistake when setting the opposite order.
This MR adds a new flag ignoreOR
specifically for the MET block, that removes any mention of OR cuts on the input object collections.