Add better way for user defined node status

With more people writing scripts, authors may want to include their own node status for their programs.

We discussed this a few years ago and the solution was to use unused text.dat numeric 708 along with NODE_BXFR which you said wasn't used at that time.

However, webv4 shows "transferring bidirectional" when I have set 708 to be "Multi Relay Chat".

It appears that NODE_BXFR is hard coded in several places.

The solution might be to just fix webv4 so that it pulls the currently running program from the node information. Maybe node.ini could contain an "nodeinfo" entry that's updated so it can be easily accessed

Either way, webv4 definitely needs fixing to read the proper value that was set.