[Insight-developers] Improving module CMake help text

[David Doria]

The CMake help text for all of the modules is very non-descriptive.
They all say "Request building XYZ". After all of the hard work with
the modularization, it seems like improving this text would be an easy
and very useful thing to do. Users should be able to understand what
they are getting by turning on each module.

I have started a spreadsheet here:

https://docs.google.com/spreadsheet/ccc?key=0AsyIfGqnlfSodElaclB0UGcwb25LNkY5eWVpbkF3d2c

I suggest we use it to come to a consensus on the text. Currently the
root CMakeLists.txt generates the generic help text for each module.
Would it be possible to add a variable to each module's CMakeLists.txt
called HELP_TEXT that could be referenced from the root
CMakeLists.txt? Storing the text inside the module will ensure things
stay in sync down the road.

David