Headers set/add timeMillis for master branch

Motivation:
Commit eb0e127ee903364814e0710f435d4b92ecf2ed37 was designed for the 4.1 branch.  The 5.0 branch had a few additional classes which required updates to get the new timeMillis methods for all the header classes.

Modifications:
Update the *Headers interfaces/classes that were not updated in the 4.1 branch.

Result:
All *Headers interfaces support set/add timeMillis methods.