Further work on static side

PkmnLib.Static/Libraries/LibrarySettings.cs

@@ -0,0 +1,18 @@
+namespace PkmnLib.Static.Libraries;
+
+/// <summary>
+/// General settings for the library.
+/// </summary>
+public record LibrarySettings
+{
+    /// <summary>
+    /// The maximum level a Pokémon can reach.
+    /// </summary>
+    public required LevelInt MaxLevel { get; init; }
+    
+    /// <summary>
+    /// The chance of a Pokémon being shiny, as the denominator of a fraction, where the nominator
+    /// is 1. For example, if this is 1000, then the chance of a Pokémon being shiny is 1/1000.
+    /// </summary>
+    public required uint ShinyRate { get; init; }
+}