Draft: Data transformations

Implement the mechanism to handle Data Transformations.

Proposed solution :

• In order to handle different data transformations for different data modalities, the data transformations are contained in the database
• A data transformation is an operator and they are organized in a graphView

GraphView mDataTransformations;
Scheduler mScheduler;

• The data transformations are called in the getItem function of the database

getItem(idx){
// Load the stimulis in mStimulis(idx)
// perform the data transformation os each stimuli 
mScheduler.forward(stimuli)
return output_data_transformations
}