Make separate server/desktop build procedures for CARTA

[pfederl]

... I'm trying to get the skeleton2 code running locally. It doesn't come
with a PureWeb directory. Are you putting a link to PureWeb in your
build?

I'm getting a "No such file or directory" error from

include "CSI/Standard/CsiStandard.h"

in ServerConnector.h

This seems to be a PureWeb include.

I showed the problem to Jim, and I guess he is concerned that the code
should compile without PureWeb so that we don't have a dependency
on it.

[pfederl]

Right now the build process builds both server and desktop clients simultaneously, which means it breaks in the absence of PureWeb (required to build the server).

It would be nice to have a way to specify which build to make (or both) so that they can be built independently.