Mutation logs, Optimization and more!

# New features:

• Mutation logs: with mutation logs, you can track every individual's last 700 mutations!
• Last names: Now creatures and plants have last names based on their physical genes.

# Changes:

• New user interface.
• Hunting Gene now have 5 ranks ranging from 0 to 4.
• Meat pieces now have colors.
• Major optimization performace.
• Creatures now can use fat to heal, grow and reproduce but it will be 10x slower.
• Courage gene was renamed to Survival Gene. Creatures will now only panic if their health drops below a certain threshold.
• First animation added: Now creatures blink their eye(s).