Default SSL session timeout to 1 hour.
Default SSL session timeout to 1 hour.

Summary:
A default of 0 uses the OpenSSL default of 5 minutes, however with
fizz it actually uses 0, effectively disabling resumption.

Reviewed By: ngoyal

Differential Revision: D13658571

fbshipit-source-id: f96bffb67269a74fe204e2ecfdceac32bf0bf812

facebook/wangle,facebook/wangle,facebook/wangle