Introducing the fann library.

See leenissen.dk/fann/wp/ for more information on the fann library and support.  This larlight
package will contain all of the fann files, and typing a make in this package will ensure fann
is compiled and ready to go.  This package will also have some examples of training modules,
and will probably contain some trained neural networks (for, example, track shower separatation)

Starting on branch fann, will merge back to trunk when everything is ready to go.
Updating makefile to also compile fann
Introducing a training module for ANN
Making it work and allow user to choose what type (double vs. float) to choose for FANN --kazu
Some updates to the fann package, about to test another compile scheme then
merging back into trunk.
Removing some cmake files
Merge branch 'fann' into trunk