Each output type will have its own translator from a blueprint to
a pipeline.
In the future, we may also want to distinguish between different
base distributions and architectures, but for now we keep it
simple and hardcode to a given one.
Some placeholder output formats are added, these have not been
tested or reserached, but are included to show how the it will
all fit together.
Signed-off-by: Tom Gundersen <teg@jklm.no>
