* add ability to perform an etcd on-demand snapshot via cli

/bin/rm is less portable. On some distros, like nixos, it doesn't exist
at all.
Signed-off-by: Euan Kemp <euank@euank.com>

Signed-off-by: Darren Shepherd <darren@rancher.com>

This reverts commit e1dc3451

.
Signed-off-by: Darren Shepherd <darren@rancher.com>

Include static Helm assets in the build process needed for air-gap

Switch binaries to armhf suffix to be more clean on the on
architecture