creating a string out of neural network (segmentation upgrade)

[starcruiser5289]

modify segmentation.c so that:

• adapt matrice size gain from letter_seg into a 32x32 matrice for neural network
• letter_seg return or modify a string to add character from neural network to make words
• word_seg return or modify a string that combines all words to make lines
• line_seg return or modify a string that combines all lines to make a paragraph
• parag_seg (when coded) return or modify a string that combines all paragraphs that makes up the file