Added MATLAB Simulated Annealing NN

- Added .gitignore for matlab save files
- Added Simulated Annealing NN
- Moved Genetic Annealing example to nn/ga/
There was very minor error in use of initial value

initial_il_weights was used when initial_ol_weights should have been
used
Merge pull request #1 from ymiyata/nn-simulated-annealing

Adds Simulated Annealing NN