[ODE] added the 'contrib' directory

[Russ Smith]

i have added a 'contrib' directory to ODE (in CVS). to quote from the
README in that dir:

  This directory contains ODE-related things that have been generously
  contributed by ODE's users. Why is this stuff here and not integrated
  into the main ODE source tree?  There may be several reasons:

    * The author(s) and ODE maintainers(s) may not have had time to do
      the job.

    * It may not be finished.

    * It may contribute functionality that is useful but not considered
      to be part of ODE's core.

  No guarantees are made about the code in this directory - it may not
  be documented, it may not have been tested, and it may not even
  compile for you.

  Each package has its own subdirectory, with a README file in that
  directory explaining what the package is.

the first stuff added there is a triangle collider contributed by
Erwin de Vries. Erwin - i have not had a chance to look deeply at
this stuff yet. but i didn't want it to languish on my hard drive, so
i've added it to contrib so that perhaps others can benefit from it
... okay with you?

russ.

--
Russell Smith
http://www.q12.org