public bool is_system_device_path (string device_path)
device_path is considered a block device path which is only used in implementation of the OS.
This is primarily used for hiding mounted volumes that are intended as APIs for programs to read, and system administrators at a shell; rather than something that should, for example, appear in a GUI. For example, the Linux `/proc` filesystem.
The list of device paths considered ‘system’ ones may change over time.
a device path, e.g. `/dev/loop0` or `nfsd`