Add mode to AppendPolyData filter to pass field data

This add the possibility to the AppendPolydataFilter to forward the field data arrays that are identical in all the inputs to its output.
This behavior can be set by an option. The old behavior, that is to just drop all field data arrays, remains the default one.
This is related to a bug in ParaView that prevent multipiece datasets field data to be displayed correctly, because the fields data were dropped
by this filter in the geometry representation (see issue paraview/paraview#20748 (closed)).