This will be used instead of the custom catalyst vtk editions making
it much more easier to add new vtk libraries to the automatic build,
see #869.

Catalyst will be used in the future but just for in-situ vis configs.

Ancient CMake versions required upper-case commands. Later command
names became case-insensitive. Now the preferred style is lower-case.

Run the following shell code:

cmake --help-command-list |
grep -v "cmake version" |
while read c; do
    echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g'
done >convert.sed &&
git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' |
egrep -z -v '^(Utilities/cm|Source/kwsys/)' |
xargs -0 sed -i -f convert.sed &&
rm convert.sed

If you use VTK / ParaView classes in your target set everything up
with this macro.

Usage:

    INCLUDE(AddCatalystDependency)
    ADD_CATALYST_DEPENDENCY(Target)