This is a test vector creator for RadioGatún (all eight byte-length 
variants; since the specs say you add a 1 when terminating the input,
but the reference code adds an octet with a value of "1" at the end,
RadioGatun is undefined for non-octet lengths), as well as for two
variants of RadioGatun:

* RadioWider: The mill is 17 words, instead of 13 words wide, the belt
  is 23 words (instead of 19) wide, and 20 instead of 16 blank rounds
  are put between the last input and first output.

* RadioWideband: 31 word wide belt, 37 word wide mill, 34 blank rounds.
  This is mainly so that the version with 8-bit words can have about
  128 bits of security.

* RadioAddin: The gamme function in the mill has bitwise or replaced 
  by addition.  This way, two different distinct operations are 
  done, making it harder to analyze.  The downside is that, at 
  the hardware level, a 32-bit adder (as one possible word size) 
  needs 160 or more gates (with delays because of carry ripple) while 
  32-bit bitwise or only needs 32 gates, with no delays.

The number of blank rounds are determined the same way they are in 
standard RadioGatún: How many rounds needed before a single bit change
anywhere in the belt or mill affects all bits in the mill?