Taking over the maintenance of open-vm-tools.

Closes: #717381
Adding watch file.
Imported Upstream version 9.4.0-1280544
Merge tag 'upstream/9.4.0-1280544'

Upstream version 9.4.0-1280544
Refreshing patches.
Adding CUSTOM_PROCPS_NAME/CFLAGS to dh_auto_configure call.
Importing patches from Ubuntu.

As open-vm-tools should just do the right thing, we leave building
vmsync enabled to make backporting easier.

Thanks: Nate Muench <NowIWillDestroyAbydos@gmail.com>
Copy upstream's dkms config for dh_dkms.
Updating changelog