[PXE] prepare PXE environment
This task is regarding how to set up a propper PXE boot environment the result should be:
- A collection of files needed including bootloaders and config files
- A short documentation regarding how the config files work, what the machine specific parts are.
- A list of all aditional files needed.
- A short documentaiton how parameters can be passed to the booting system (properly over kernel parameters?)
This does not include the boot image!