- added UDMF properties to set glows per sector.

- for explicitly defined glows, use the one for the current animation frame, if an animated texture is active. For default glows it will still use the base texture's to avoid inconsistencies.

src/p_saveg.cpp

@@ -181,6 +181,8 @@ FSerializer &Serialize(FSerializer &arc, const char *key, sector_t::splane &p, s
 			("texture", p.Texture, def->Texture)
 			("texz", p.TexZ, def->TexZ)
 			("alpha", p.alpha, def->alpha)
+			("glowcolor", p.GlowColor, def->GlowColor)
+			("glowheight", p.GlowHeight, def->GlowHeight)
 			.EndObject();
 	}
 	return arc;