Small updates from Yannick's development branch

examples/EAGLE_ICs/EAGLE_100/eagle_100.yml

examples/EAGLE_ICs/EAGLE_12/eagle_12.yml

examples/EAGLE_ICs/EAGLE_25/eagle_25.yml

examples/EAGLE_ICs/EAGLE_50/eagle_50.yml

examples/EAGLE_ICs/EAGLE_50_low_res/eagle_50.yml

examples/EAGLE_ICs/EAGLE_6/eagle_6.yml

examples/EAGLE_low_z/EAGLE_12/eagle_12.yml

examples/EAGLE_low_z/EAGLE_25/eagle_25.yml

examples/EAGLE_low_z/EAGLE_50/eagle_50.yml

examples/EAGLE_low_z/EAGLE_6/eagle_6.yml

...solatedGalaxy/IsolatedGalaxy_feedback/isolated_galaxy.yml

examples/parameter_example.yml

src/black_holes/EAGLE/black_holes.h

src/black_holes/EAGLE/black_holes_iact.h

src/black_holes/EAGLE/black_holes_io.h

src/black_holes/EAGLE/black_holes_part.h

src/black_holes/EAGLE/black_holes_properties.h

src/feedback/EAGLE/feedback.c

src/feedback/EAGLE/feedback.h

src/feedback/EAGLE/feedback_iact.h