That way, the makefile doesn't need to know that much anymore, and
gets simpler/less verbose.
\# Also
* Added filters for rust doc string
* fixed .PHONY
Namespaces can exclusively be used during rendering, which is fine if
you remind yourself of the newline rules.
However, I also need some utiltiies that convert input data. These
are now within their own libraries, which can be used from python blocks
like the ordinary python functions they are.
Quite neat.
In future, most of the functionality will be in separate namespaces,
the top-level will just assemble the main library file, usnig the
provided %defs. That way, the main file is kept clean.