Add script which is aimed to generate CUEW files

Still highly WIP, main TODOs:

- For some reason <stdlib.h> can't be found, so for now
  you need to make a local copy of cuda.h, get rid of
  the include and typedef size_t.

  In the future it needs to be fixed.

- Enumerator (and maybe some other?) names are truncated
  to 31 characters. Can't make pycparser to give me the
  full symbol name,