Adding support for CMAKE compilation

The file added allows to "configure" and "compile" the code in different architectures using the CMAKE tool (http://www.cmake.org)

How to compile the code:

0. Ask your system administrator to install the CMAKE tool.
1. Create a directory where you want to build the application. We'll call this the $IPIC_BUILD directory
2. If $IPIC_ROOT is the base directory where the sources of the code where downloaded type the following commands:

cd $IPIC_BUILD
cmake $IPIC_ROOT/ -G"Unix Makefiles"
make

3. The executable is installed in the $IPIC_BUILD/work directory.