Added documentation for new file-based storage method for IR
Added documentation for new file-based storage method for IR

Signed-off-by: Nicola Barresi <a34f67623f532ef8e6bac5d1b06e21dee76df5e6@polito.it>
Signed-off-by: Roberto Sassu <b795143cf975fac5fdf5062ce277ad815f3aaf8e@polito.it>

baaltommysu/OpenAttestation,baaltommysu/OpenAttestation,baaltommysu/OpenAttestation,baaltommysu/OpenAttestation,baaltommysu/OpenAttestation