Freset: properly reset graphics objects (bug #35511) * graphics.in.h (base_graphics_object, graphics_object, root): add new method "get_factory_defaults_list" to retrieve factory defaults as property_list * graphics.in.h (base_graphics_object::reset_default_properties (void)): move definition to graphics.cc * graphics.cc (xreset_default_properties): new function to set a list of prop/val * graphics.cc (base_graphics_object::reset_default_properties): use xreset_default_properties, override with parents' defaults * graphics.cc (root_figure::reset_default_properties, figure::reset_default_properties, uitoolbar::reset_default_properties): same as above but first empty local defaults * graphics.cc (axes_figure::reset_default_properties): same as above but use "propeties.set_defaults" to reset properties to their factory value. * graphics.cc (axes_figure::properties::set_defaults): new "reset" mode, that does the same as "replace" but x/y/zlabels and title are reset instead of being deleting/recreating. * graphics.cc: add %!tests for Freset

GNULIB_LINK_DEPS = \
  $(COPYSIGNF_LIBM)\
  $(COPYSIGN_LIBM)\
  $(FLOORF_LIBM)\
  $(FLOOR_LIBM)\
  $(GETHOSTNAME_LIB)\
  $(LIBSOCKET)\
  $(LIB_NANOSLEEP)\
  $(LIB_SELECT)\
  $(LTLIBINTL)\
  $(ROUNDF_LIBM)\
  $(ROUND_LIBM)\
  $(TRUNCF_LIBM)\
  $(TRUNC_LIBM)

LIBOCTAVE_LINK_DEPS = \
  $(GNULIB_LINK_DEPS) \
  $(CURL_LIBS) \
  $(SPARSE_XLIBS) \
  $(ARPACK_LIBS) \
  $(QRUPDATE_LIBS) \
  $(FFTW_XLIBS) \
  $(LAPACK_LIBS) \
  $(BLAS_LIBS) \
  $(READLINE_LIBS) \
  $(TERM_LIBS) \
  $(LIBGLOB) \
  $(PCRE_LIBS) \
  $(DL_LIBS) \
  $(PTHREAD_LIBS) \
  $(FLIBS) \
  $(LIBS)

LIBOCTAVE_LINK_OPTS = \
  $(CURL_LDFLAGS) \
  $(SPARSE_XLDFLAGS) \
  $(ARPACK_LDFLAGS) \
  $(QRUPDATE_LDFLAGS) \
  $(FFTW_XLDFLAGS)