COMP: Configure include directories into SlicerConfig.cmake

This commit adds the following variables to the config file:

For each module:

- <Module>_INCLUDE_DIRS
- <ModuleLogic>_INCLUDE_DIRS
- <ModuleMRML>_INCLUDE_DIRS
- <ModuleWidget>_INCLUDE_DIRS

and for MRMLLogic:

- MRMLLogic_INCLUDE_DIRS

git-svn-id: http://svn.slicer.org/Slicer4/trunk@22779 3bd1e089-480b-0410-8dfb-8563597acbee