Added cmake rules for installing tools in bin dir

When performing the tutorials, I wanted to use the
tools/xmlGenerator/hostDomainGenerator.sh script.

In order to do that, i had to copy manually my scripts files
to the pfwInstalledDir/bin directory.
This patchs completes the install target by copying the needed files
CMake will install these file as regular (non-executable) files.  use "install(PROGRAMS <files> DESTINATION bin)" instead.