[VV] Hyperdrive taxonomy

Let's argue in the same framework.

http://www.projectrho.com/stardrv.txt

I quite like the idea of a 2.1.1 as the "fast/inconvenient" drive -
fixed point to point, but it still takes time to traverse, and turning off the
drive before you get to the far end would probably be bad. This could easily
be combined with either natural or artificial gates.

For the slow/convenient drive, a 1.4.2 could be fun...

R