Added scripts to generate training and test data for symbols:
    - all scripts should be run while inside 'src' folder
    - 'genTrainingData' generates LOTS of transformations; quantities in scripts can be changed but keep in mind that they refer to the quantity for each original image, of which there can be multiple for each symbol type to accomodate various handwriting styles
    - 'genTestData' currently generates 100 random transformations for each original image using the same methods as 'genTrainingData'

Signed-off-by: Jimmy Yu <jimmy.w.j.yu@gmail.com>