Add hh_client and hh_server to HHVM debian packaging script

Summary: The files will already be built, just copy them over.

Test Plan: Run enough of the script to generate a wheezy deb. Install that deb in a wheezy VM, `hhvm`, `hh_server`, and `hh_client` all are present and work.

Reviewers: ptarjan, sgolemon

Reviewed By: ptarjan

Differential Revision: D1209310

Task ID: 3576169, 3857101
Add hackificator and remove_soft_types to debian skeleton

Summary:
This are annoying to build, the binaries are pretty portable,
and the code changes rarely. Just shove the binaries into the skeleton
for now.

Test Plan:
Build and install the package. `hackificator` is on the $PATH
in /usr/bin and runs fine.

Reviewers: ptarjan, sgolemon

Reviewed By: ptarjan

Differential Revision: D1217346

Task ID: 3908879, 3777352