dev-libs/libmspack: add libmspack-0.4_alpha
app-emulation/open-vm-tools: track stable-9.4.6-deploypkg and use mspack
app-emulation/open-vm-tools: update network script

The current network script gives errors when suspending/resuming a vm running CoreOS with open-vm-tools. this adds a patch to fix it.

Originally written by Oliver Kurth <okurth@vmware.com>.