Add new doxygen file headers

gstlal-inspiral/bin/gstlal_ll_inspiral_get_urls

gstlal-inspiral/bin/gstlal_llsnrhistory

gstlal-inspiral/bin/gstlalcbcnode

gstlal-inspiral/bin/gstlalcbcsummary

gstlal-inspiral/python/chirptime.py

gstlal-inspiral/python/curve_fit.py

gstlal-inspiral/python/hoftcache.py

gstlal-inspiral/python/lloidplots.py

gstlal-inspiral/python/llweb.py

gstlal-inspiral/python/plotfar.py

gstlal-inspiral/python/plotsegments.py

gstlal-inspiral/python/rate_estimation.py

gstlal/python/__init__.py

gstlal/python/coherent_null.py

gstlal/python/dagparts.py

gstlal/python/elements.py

gstlal/python/matplotlibhelper.py

gstlal/python/misc.py

gstlal/python/pipeio.py

gstlal/python/pipeutil.py