CSDS independent

The CSDS should not depend on SWIFT, but the other way around. Here, I am making the final step in order to make sure that it is the case. The CSDS is now producing two libraries. The usual one for the reader and one for the writer. There is also one header just for the writer csds/src/csds_logfile_writer.h.

I have moved dump.h and dump.c into CSDS' repository and renamed them csds_logfile_writer. Most of the lines removed here are just moved into my repository.

For the tests, I decided to keep them here as they ensure that the CSDS works correctly within SWIFT.

examples/Makefile.am

@@ -16,7 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # Common flags
-MYFLAGS = 
+MYFLAGS =
 
 # Add the source directory and the non-standard paths to the included library headers to CFLAGS
 AM_CFLAGS = -I$(top_srcdir)/src -I$(top_srcdir)/argparse $(HDF5_CPPFLAGS) \
@@ -41,6 +41,13 @@ if HAVESTANDALONEFOF
 bin_PROGRAMS += fof
 endif
 
+# Do we have the CSDS?
+if HAVECSDS
+LD_CSDS = ../csds/src/.libs/libcsds_writer.a
+else
+LD_CSDS =
+endif
+
 # Build MPI versions as well?
 if HAVEMPI
 bin_PROGRAMS += swift_mpi
@@ -59,22 +66,22 @@ endif
 # Sources for swift
 swift_SOURCES = main.c
 swift_CFLAGS = $(MYFLAGS) $(AM_CFLAGS) -DENGINE_POLICY="engine_policy_keep $(ENGINE_POLICY_SETAFFINITY)"
-swift_LDADD =  ../src/.libs/libswiftsim.a ../argparse/.libs/libargparse.a $(EXTRA_LIBS)
+swift_LDADD =  ../src/.libs/libswiftsim.a ../argparse/.libs/libargparse.a $(EXTRA_LIBS) $(LD_CSDS)
 
 # Sources for swift_mpi, do we need an affinity policy for MPI?
 swift_mpi_SOURCES = main.c
 swift_mpi_CFLAGS = $(MYFLAGS) $(AM_CFLAGS) $(MPI_FLAGS) -DENGINE_POLICY="engine_policy_keep $(ENGINE_POLICY_SETAFFINITY)"
-swift_mpi_LDADD =  ../src/.libs/libswiftsim_mpi.a ../argparse/.libs/libargparse.a $(MPI_LIBS) $(EXTRA_LIBS)
+swift_mpi_LDADD =  ../src/.libs/libswiftsim_mpi.a ../argparse/.libs/libargparse.a $(MPI_LIBS) $(EXTRA_LIBS) $(LD_CSDS)
 
 # Sources for fof
 fof_SOURCES = main_fof.c
 fof_CFLAGS = $(MYFLAGS) $(AM_CFLAGS) -DENGINE_POLICY="engine_policy_keep $(ENGINE_POLICY_SETAFFINITY)"
-fof_LDADD =  ../src/.libs/libswiftsim.a ../argparse/.libs/libargparse.a $(EXTRA_LIBS)
+fof_LDADD =  ../src/.libs/libswiftsim.a ../argparse/.libs/libargparse.a $(EXTRA_LIBS) $(LD_CSDS)
 
 # Sources for fof_mpi, do we need an affinity policy for MPI?
 fof_mpi_SOURCES = main_fof.c
 fof_mpi_CFLAGS = $(MYFLAGS) $(AM_CFLAGS) $(MPI_FLAGS) -DENGINE_POLICY="engine_policy_keep $(ENGINE_POLICY_SETAFFINITY)"
-fof_mpi_LDADD =  ../src/.libs/libswiftsim_mpi.a ../argparse/.libs/libargparse.a $(MPI_LIBS) $(EXTRA_LIBS)
+fof_mpi_LDADD =  ../src/.libs/libswiftsim_mpi.a ../argparse/.libs/libargparse.a $(MPI_LIBS) $(EXTRA_LIBS) $(LD_CSDS)
 
 # Scripts to generate ICs
 EXTRA_DIST = Cooling/CoolingBox/coolingBox.yml Cooling/CoolingBox/plotEnergy.py Cooling/CoolingBox/makeIC.py Cooling/CoolingBox/run.sh Cooling/CoolingBox/getGlass.sh \