With the new version of Visual Studio bringing C# 12, we can revise our logic for better readability as well as use new methods/APIs introduced in the .NET 8.0 BCL.
In this pull request I've changed a ton of method signatures to reflect the more-narrow types of Species, Move# and Form; additionally, I've narrowed other large collections that stored lists of species / permitted values, and reworked them to be more performant with the latest API spaghetti that PKHeX provides. Roamer met locations, usually in a range of [max-min]<64, can be quickly checked using a bitflag operation on a UInt64. Other collections (like "Is this from Colosseum or XD") were eliminated -- shadow state is not transferred COLO<->XD, so having a Shadow ID or matching the met location from a gift/wild encounter is a sufficient check for "originated in XD".
Add Get/Set Relearn method to PKM.cs
Alpha Mastered move now indicates incomplete text entry (like moves/relearn)
Split up legal move indication helper class, use DI to allow other implementations of DataSource to be returned (pkhex mobile?).
Remove unused gender refresh method (see previous added UserControl commit)
Add helper method to center control within control
