Updated structure of lecture plan and file names (needs to be double checked)

exercises/02450Toolbox_Python/Scripts/ex0_4_2.py

exercises/02450Toolbox_Python/Scripts/ex0_4_3.py

exercises/02450Toolbox_Python/Scripts/ex1_5_1.py

exercises/02450Toolbox_Python/Scripts/ex1_6_2.py

exercises/02450Toolbox_Python/Scripts/ex1_6_3.py

exercises/02450Toolbox_Python/Scripts/ex1_6_4.py

exercises/02450Toolbox_Python/Scripts/ex1_6_5.py

exercises/02450Toolbox_Python/Scripts/ex2_1_1.py

exercises/02450Toolbox_Python/Scripts/ex2_2_1.py

exercises/02450Toolbox_Python/Scripts/ex2_2_2.py

exercises/02450Toolbox_Python/Scripts/ex2_3_1.py

exercises/02450Toolbox_Python/Scripts/ex2_3_2.py

exercises/02450Toolbox_Python/Scripts/ex2_3_3.py

exercises/02450Toolbox_Python/Scripts/ex2_3_4.py

exercises/02450Toolbox_Python/Scripts/ex2_3_5.py

exercises/02450Toolbox_Python/Scripts/ex2_3_6.py

exercises/02450Toolbox_Python/Scripts/ex2_3_7.py

exercises/02450Toolbox_Python/Scripts/ex2_4_1.py

exercises/02450Toolbox_Python/Scripts/ex2_4_2.py

exercises/02450Toolbox_Python/Scripts/ex3_1_1.py