Add specific reasoning for filter list inclusion

[silasdavis]

It would be helpful to add the specific justification for inclusion of each marketplace contract on the table.

For example from what I can see LooksRare support via ERC2981, why are they on the list of excluded contracts?

[silasdavis]

Regarding LooksRare, looks like I was out-of-date: https://docs.looksrare.org/blog/looksrare-offers-zero-royalty-trading-shares-protocol-fees-with-creators-instead. Fair enough.

Please still provide a column explaining the decision in each case.