Make extension services self contained #876
Description
Some of the extension services in this repository follows a very bad example for other extension authors by not having files in the container rootfs and instead bind mounting it from the host, this started as a simple copy paste as we were experimenting with extensions and some extensions especially nvidia needs files both on host and for extension services.
Go through each extension service and make each of them self contained unless the files needs to be present on the host also.