Add AllBitsSet, refactor WideLane, improve math paths

- Add static AllBitsSet property to ISPMDLane and implement in ScalarLane and WideLane
- Refactor WideLane shuffle table pointers and update usages
- Improve pointer safety and mask handling in CompressStore, Gather, and MaskLoad
- Enhance Sin, Cos, SinCos with fast-math and hardware fallback
- Add Newton-Raphson refinement for reciprocal/sqrt when not fast-math
- Optimize MathV.Vector vector loading (struct init, pointer ops)
- Update project file: version 1.3.4, content packaging, AOT settings
- Minor code cleanup and naming consistency fixes

Misaki.HighPerformance.Mathematics.SPMD/ScalerLane.cs

@@ -40,6 +40,12 @@ public readonly unsafe struct ScalarLane<TNumber> : ISPMDLane<ScalarLane<TNumber
         get => new ScalarLane<TNumber>(TNumber.MaxValue);
     }
 
+    public static ScalarLane<TNumber> AllBitsSet
+    {
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        get => new ScalarLane<TNumber>(TNumber.AllBitsSet);
+    }
+
     public readonly TNumber this[int index]
     {
         [MethodImpl(MethodImplOptions.AggressiveInlining)]