16.5.0: Polymarket integration (#66)

* feat(polymarket-integration): added some types

* feat(polymarket-integration): added more types

* feat(polymarket-integration): added more types

* feat(polymarket-integration): added PolymarketBookChangeMapper mapper

* feat(polymarket-integration): added PolymarketTradesMapper mapper

* feat(polymarket-integration): registered mappers

* feat(polymarket-integration): added next channel

* feat(polymarket-integration): added PolymarketBookTickerMapper mapper

* feat(polymarket-integration): added real feed streaming

* feat(polymarket-integration): improved naming

* feat(polymarket-integration): fixed prettier formatting

* feat(polymarket-integration): migration after back-merge

* feat(polymarket-integration): added  new_market and market_resolved channels

* feat(polymarket-integration): improved condition orders

* feat(polymarket-integration): cleanup

* feat(polymarket-integration): SIMPLIFIED

* feat(polymarket-integration): cleanup

* feat(polymarket-integration): cleanup

* feat(polymarket-integration): optimizations

* feat(polymarket-integration): forget about tests