netlist generation: remove option "replace IC and U ref by X" (broken option).
All component refs are now prefixed by the Spice_Primitive field value.
Therefore the netlist used by Kicad ngsipce simulator and the spice netlist generated from dialog are the same.
(note: like previously, forbidden chars like ( and ) are replaced by _ in netnames)
* Fix parent of elements in wxSizers.
* Update old dialog with recent version of wxFormBuilder.
* Add wxALIGN_CENTER_VERTICAL flag to some dialogs.
* Update wxFormBuilder timestamp in generated sources.
File "rules" has instructional text as comments near top.
2) Convert all text files in repo to LF line ending form.
Any checkout done with "rules" in play will convert the working
tree to native line ending, while keeping repo as LF line ending.