First couple abilities implemented

PkmnLib.Static/Utils/NumericHelpers.cs

@@ -5,6 +5,12 @@ namespace PkmnLib.Static.Utils;
 /// </summary>
 public static class NumericHelpers
 {
+    /// <summary>
+    /// Checks if two floating-point values are approximately equal within a specified tolerance.
+    /// </summary>
+    public static bool IsApproximatelyEqualTo(this float value, float other, float tolerance = 0.0001f) =>
+        MathF.Abs(value - other) <= tolerance;
+
     /// <summary>
     /// Multiplies two values. If this overflows, returns <see cref="byte.MaxValue"/>.
     /// </summary>