zeroex - refactor eth models [FOR REVIEW] (#4075)

* initial Socialtokens view

* Rename socialTokens to socialtokens.sql

* Addded new tokens to list

* Update socialtokens.sql

* rmv social tokens file

* add zeroex to dex_aggregator.trades

* revise api_fills model

* add dunesql tag

* update substring to bytearray_substring

* cast dates

* cast dates

* remove floats

* remove floats

* cast 0 as int256

* remove dups

* add 0xdac17f958d2ee523a2206206994597c13d831ec7

* subtraction underflow fix

* cast raw amounts

* update schema

* update tag enclosures in schema

* change check_seed_legacy to check_seed

* re-add seed file

* remove changes to profile

* add see schema

* revise dates on seed file

* add deduped model

* swap_flag

* add native_fills model

* change check_seed_legacy to check_seed on native_fills model

* remove seed test

* remove seed test

* remove numeric

* name protocol_fee_paid_eth

* try cast block_time as timestamp

* update test

* cast timestamps

* update native fills

* update schema

* revise poly fills

* revise deduped

* add schema file

* remoe schema

* remove changes to poly

* trace_Address, change to block_month

* re-add poly schema

* uint256

* uint256

* remove

* uint256

* uint256

* uint256

* unint256

* uint 256