New I-D on inter-area (and inter-as) MPLS TE requirements

This was written in about an hour, late the night before the deadline
(so show some mercy :)

draft-boyle-tewg-interarea-reqts-00.txt

The goal was to make sure that we cover requirements for inter-area TE.
To show that it's not that hard to couple in the requirements for inter-as
TE, I extended it to cover that as well.

regards,

Jim