v3.0-b.5
libnvme/design: refresh generate_sysfs_accessors.md
doc: Regenerate all docs for v3.0-b.5
nvme: move source code to src folder
libnvme: add lazy sysfs read to subsystems (libnvme_subsystem)
build: merge update-docs script
libnvme: substitute RUNDIR into the registry udev rule
libnvme: add lazy sysfs read to eui64/nguid/uuid (libnvme_ns)
docs: update license for rtd yaml files
lib: import libnvme sources
libnvme: rename Python binding to libnvme3