Moved basic event implementation to support

...fr/univ_lille/cristal/emeraude/n2s3/core/InputLayer.scala

...ala/fr/univ_lille/cristal/emeraude/n2s3/core/Neuron.scala

.../univ_lille/cristal/emeraude/n2s3/core/Synchronizer.scala

...scala/fr/univ_lille/cristal/emeraude/n2s3/core/Unit.scala

...r/univ_lille/cristal/emeraude/n2s3/core/event/Event.scala

..._lille/cristal/emeraude/n2s3/core/event/EventHolder.scala

...cristal/emeraude/n2s3/core/event/EventHolderMessage.scala

...ille/cristal/emeraude/n2s3/core/event/EventResponse.scala

...lle/cristal/emeraude/n2s3/core/event/EventTriggered.scala

.../cristal/emeraude/n2s3/core/event/InputRestartEvent.scala

...istal/emeraude/n2s3/core/event/InputRestartResponse.scala

...e/cristal/emeraude/n2s3/core/event/LabelChangeEvent.scala

...ristal/emeraude/n2s3/core/event/LabelChangeResponse.scala

...le/cristal/emeraude/n2s3/core/event/NeuronFireEvent.scala

...cristal/emeraude/n2s3/core/event/NeuronFireResponse.scala

.../cristal/emeraude/n2s3/core/event/NeuronUpdateEvent.scala

...iv_lille/cristal/emeraude/n2s3/core/event/Subscribe.scala

...stal/emeraude/n2s3/core/event/SubscribeSynchronized.scala

...cristal/emeraude/n2s3/core/event/SynapseUpdateEvent.scala

.../cristal/emeraude/n2s3/core/event/SynchronizedEvent.scala