Just a sql patch for all day events.

Summary: Ref T8021, sql patch for all day events.

Test Plan: check schema by running bin/storage upgrade

Reviewers: epriestley, Blessed Reviewers

Reviewed By: epriestley, Blessed Reviewers

Subscribers: Korvin, epriestley

Maniphest Tasks: T8021

Differential Revision: https://secure.phabricator.com/D12763