C++ and command-line interface for the TLU.

Tested with modelsim and quartus.

These registers control an eca channel, not a queue.
Fix the definitions so as not to conflict with new registers
that actually DO control an action queue.

Following up the last commit, this adds channel meta-data to the
WB interface of the ECA action queue. This supports software in
determining which queue is connected to which channel.

In a complex design, there are many receiving components connected
to ECA channels. Some of these may have their own WB bus logic. It
is useful to be able to determine which WB slave corresponds to which
ECA channel. This commit adds meta-data that can make the link.

Under higher load of traffic SOF was being detected while main FSM was
not yet done with sending frame. That caused OOB FSM to reset and "tx
timestamp never became available" warnings in WR PTP Core software.

This change is necessary for network control/monitor tool in order to read the GUI command output.
The GUI command output can not be stored into a 1024 bytes fifo.

This branch adds changes needed to unify all the GSI form-factors.