Earlier one needs all otb modules to build examples. This single commit
activate an example and its related test if and only if all of its
dependent module is activated. The check for a module is done using
<Module>_LOADED cmake variable. With this change, activating
BUILD_EXAMPLES=ON works flawlessly irrespective of your build configuration.

TEST: Removing test that was shadowed before modularization (never executed) and with icomplete argument list

    modifications generated via the script FindRedundantHeaderIncludes.py
    2nd pass

modifications generated via the script FindRedundantHeaderIncludes.py

Ancient versions of CMake required else(), endif(), and similar block
termination commands to have arguments matching the command starting the
block.  This is no longer the preferred style.

NOTE: MUST USE GNU compliant version of sed
Run the following shell code (Adopted from Brad King scripts for CMake):

for c in else endif endforeach endfunction endmacro endwhile; do
    echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/'
done >convert.sed \
&& git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' \
   | xargs sed -i -f convert.sed \
&& rm convert.sed


This has been adapted from ITK commit e52dbe7fa476f6283c9b9d1507fca052355113a4

This modification is based according to
the process described in ITK/Utilities/Maintenance/HowToCreateTheCMakeCaseConversion.txt