Revert "Enable systemd ready notification for k3s server"

This reverts commit c73e9187.

Add --token-file support

Add agent command to server command

fallback to the old --address part and enable the non-tls port to make healthz happy

componentstatus.
Fixes #126
Signed-off-by: Thorsten Schifferdecker <schifferdecker@b1-systems.de>

Added some punctuations wherever necessary.

Thanks for review. I don't know how these spelling errors have slipped in. :-)
Co-Authored-By: toomyem <toomyem@toomyem.net>

Check for latest release of k3s or pass a desired version as an
argument. Adds curl as a requirement and early exits if not available.
Fixes silent abort when wget is not available and `which` returns
non-zero exit code.

Disables k8s generic api server systemd ready notification and send
our own ready notification after server available and kubeconfig
available.

The kubernetes e2e tests will mount /tmp and verify permissions, fix
to match the expectations of the test for our image.

Return the directory name if assets are located in HOME, so we can
properly set the PATH for binary lookup.