InfiniBand Flit Level Model (v2) released

This model is different from previous released model in several ways:
1. It is a port to 4.2.2 version.
2. It uses module interfaces to allow for plugging in multiple implementations of the forwarding (output port selection) module
3. Some more statistics add
4. New IB wire speed are defined (40/56 Gbps)

The models provided, do not indicate in their parameters default values nor in their code the exact capabilities or micro-architecture of Mellanox products.