Revert: Remove old ACR/ACA definitions and update vendor IDs

This was commit 0f117ee034d85d78eda8c269c4a884ca9bc4510b
Revert "Definitions for Rf messages"

This reverts commit 8f2b52811bee09e77cf6e9e9b5793a0375b4aaa4.
Auto-encoders for basic types
Definitions for the Route-Header-Recieved/Sent AVPs
Merge pull request #9 from Metaswitch/revert-rf-definitions

Reviewer Rob - Revert rf definitions