Update all the EAGLE examples to use the new SNII feedback mode options

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