[native] Use hook instead of connect functions and HOC in Modal

Summary: NA

Test Plan: Tried various modals (eg ImagePickerModal, ColorPickerModal) and they worked as before.

Reviewers: ashoat, palys-swm

Reviewed By: ashoat

Subscribers: KatPo, zrebcu411, Adrian, subnub, karol-bisztyga

Differential Revision: https://phabricator.ashoat.com/D729