Adding fusion info to Gimmighoul's + Gholdengo's dex entries

Suggestion Title: Adding fusion information to Gimmighoul's and Gholdengo's Pokedex entries Suggestion Summary: The sentence "Take Gimmighoul to Colress' Shack to fuse it with Gimmighoul Coins." could be added to the Pokedex entries for both Gimmighoul and Gholdengo, in the "Evolution" section, underneath where it says they are not known to evolve. This is based on Meltan's and Melmetal's entries both saying "Take Meltan to Colress' Shack to fuse it with Scrap Metal." Positive points: - Consistency with other dex entries (Meltan/Melmetal) - Makes it more clear that Gimmighoul can be fused and that Gimmighoul and Gholdengo are related Negative points: - Reason For Consideration: I noticed that it wasn't clear in the dex that Gimmighoul can be fused to become Gholdengo. After seeing the note in Meltan's/Melmetal's entries, I wondered if this could be implemented for this case as well.

Honestly? I forgot that was a thing for Meltan :D Done.