Add random sampling and random modification of database

README.md

elm_processing/inc/Database.hpp

elm_processing/inc/Mdp_toolbox.hpp

elm_processing/inc/Report_manager.hpp

elm_processing/src/Database.cpp

elm_processing/src/Mdp_toolbox.cpp

elm_processing/src/Report_manager.cpp

elm_processing/src/main.cpp

...ccumulated_probability_according_to_empiric_mdp/README.md

...ding_to_empiric_mdp/input/structure_empiric_frequency.txt

...ric_mdp/input/structure_empiric_frequency_modif_100_1.txt

...ic_mdp/input/structure_empiric_frequency_modif_100_10.txt

...ric_mdp/input/structure_empiric_frequency_modif_100_2.txt

...ric_mdp/input/structure_empiric_frequency_modif_100_3.txt

...ric_mdp/input/structure_empiric_frequency_modif_100_4.txt

...ric_mdp/input/structure_empiric_frequency_modif_100_5.txt

...ric_mdp/input/structure_empiric_frequency_modif_100_6.txt

...ric_mdp/input/structure_empiric_frequency_modif_100_7.txt

...ric_mdp/input/structure_empiric_frequency_modif_100_8.txt

...ric_mdp/input/structure_empiric_frequency_modif_100_9.txt