Revised exchange block.

Corrected wrong assignment of u. Set initial values for uWri to avoid a translation warning. Removed pre() operator.
Added port names
Added pre()

This avoids a numerical Jacobian. It is also the same implementation as is used for the BCVTB.
Added max attribute

This avoid a warning as otherwise, Dymola assumes a max of 1
Set verbose output to false.
Renamed ffd to cfd
Renamed files.
Changed variable name.
Updated file name
Updated file name
Revised CFDExchange.

Added terminate function. Added verbose input to functions. Removed call to exchange, which was called twice at t=0
Revised CFD interface.

Removed unrequired parameters. Enabled FFD interface in the examples.