Adds scraping of explicit wraps/unwraps in APIv2.

[AndresElizondo]

https://linear.app/0xproject/issue/DENG-329/event-scrapers-zid-extraction-for-apiv2-explicit-wrapsunwraps

[AndresElizondo]

Sanity check query:

select t.* from events.unwrap_native_events une
join events.transactions t on une.transaction_hash = t.transaction_hash
where une.block_number >= 20285535
and t.block_number >= 20285535
and t.to_address <> '0xdef1c0ded9bec7f1a1670819833240f027b25eff'
and t.affiliate_address is null
and t.quote_timestamp is null
and position('56a993cd' in t."input") > 0
order by une.observed_timestamp desc
;