Gear pressure floor

configure.ac

doc/RTD/source/SubgridModels/GEAR/index.rst

...smoVolume/SmallCosmoVolume_cooling/small_cosmo_volume.yml

examples/main.c

examples/parameter_example.yml

src/Makefile.am

src/cooling/grackle/cooling.h

src/hydro/Gadget2/hydro.h

src/hydro/PressureEnergy/hydro.h

src/hydro/PressureEnergy/hydro_iact.h

src/hydro/PressureEnergy/hydro_part.h

src/hydro_properties.c

src/pressure_floor.c

src/pressure_floor.h

src/pressure_floor/GEAR/pressure_floor.h

src/pressure_floor/none/pressure_floor.h

src/swift.h