Please, add data type feature table

[Anton-Latukha]

Since benchmarks probably would really follow the data type authors approach "make counterproductive things unrepresentable" (like not providing features where data types are completely unsuited for according features, for example [] not having built-in snoc) & if data type does not provides an interface - benchmarks really should not construct a composite operation to do what was not provided by authors, because then questions to the implementation can arise & benchmark advertises & benchmarks an operation that is absent in the interface.

From the participation of particular data types in particular benchmark groups - the data type feature sets can be inferred (do they provide indexing, sorting, filtering, filtering by index) - that table in itself can be autogenerated & it would at once give a map of data type abilities. So keeping the benchmarks would draw a feature table, & having a feature table would help people to from the get-go see what data types apply to their stage/case/usage without doing a mental superposition of "have I accounted for everything".