Release v1.20.1-debug2

also build usb image for use with packer

Release v1.20.1-debug1

attemt at a more complete debug configuration

Release v1.20.1-hetzner2

feat: introduce debug shell

Currently Servers time out while chain'ing to http://169.254.169.254/latest/user-data.
It is also not possible to ping them, as that results ins a Request timeout for icmp_seq.

I therefore introduced a short timeout for entering into the manual iPXE Shell for debugging the environment - this might be removed later on.

Release v1.20.1-hetzner1

Testing the build process, need to test if this ISO performs as expected on Hetzner Cloud.

This release is not relay based on ipxe/ipxe v1.20.1 but off of the current master commit 580d9b0.
Future releases should be builds of their respective base tags.