COMP: Explicitly specify components in find_package(ITK) call.

This commit allows to reduce both the number of include directories and
the number of libraries passed to the compiler. See Slicer issue #3741 [1]

The list of components has been obtained running the following script:

```
cd BRAINSTools
/path/to/src/ITKv4/Utilities/Maintenance/WhatModulesITK.py /path/to/src//ITKv4 $(find . -type f)
```

[1] http://na-mic.org/Mantis/view.php?id=3741