All logic in PokeCrypto is separate from the rest of the PKHeX.Core
library; makes it easy to just rip this portion out and reuse in other
projects without needing the entirety of PKHeX.Core logic
optimize out the CheckEncrypted to the actual path, separate methods.
Only usages of this method were with hardcoded Format values, so no
impact
Closes#2525
G4Celebi & G6Link met location match; Pokémon Link was only available
for Gen6 so just check for that origin.
Ty @Ammako
tbh I shouldn't even have this property ha