First commit: Added basic code to draw neurons and perceive
Drawing sensorial and terminal neurons
Added neuron class and considers type of neuron to detect perception/sensation
Added neuron light up effect
Added axon connection with other neurons
Changed neuron colors relative to type and added transmission support
Added global vars for window dimension and sensory/terminal neuron count
reduced number of possible connections
Added neuron id number
Merge branch 'master' of http://github.com/samueleishion/neural-network-experiment