Add eggs common tag

[ThatGravyBoat]

This adds the eggs tag which is present on neoforge but is not on fabric, this is a very useful tags as it allows use of common eggs between platforms especially for recipes, several mods add their own egg to this tag but vanillas chicken egg is not in there by default unless a mod adds it which causes issues or is just slightly annoying that if you want to use it you either have to have an or for the tag and the vanilla item or you have to add the vanilla item yourself to the tag.