Call stellar evolution init function in main, debugging units

examples/StellarEvolution/stellar_evolution.yml

examples/main.c

src/drift.h

src/runner.c

src/stars/EAGLE/imf.h

src/stars/EAGLE/stars.h

src/stars/EAGLE/stars_iact.h

src/stars/EAGLE/stars_io.h

src/stars/EAGLE/yield_tables.h

src/stars/const/stars.h