Load Time.tcl after dependencies

Summary:
Per 14e4bb33fe65, if in the future onload is called directly
instead of a timer, Time.tcl must be loaded in last.

Ref T1309

Reviewers: dereckson

Reviewed By: dereckson

Maniphest Tasks: T1309

Differential Revision: https://devcentral.nasqueron.org/D1228