further sse simd additions

avx2 float3 added
added normalize_magnitude
added divide fast to float3 may copy to float4

move static spheremesh to drawSphere (initialize on first use) so platform has a chance to load the math backend

Engine/source/math/public/float4_dispatch.cpp

@@ -1,7 +1,14 @@
 #include "math/public/float4_dispatch.h"
+#include "math/public/float3_dispatch.h"
 
 namespace math_backend::float4::dispatch
 {
    // Single definition of the global dispatch table
    Float4Funcs gFloat4{};
 }
+
+namespace math_backend::float3::dispatch
+{
+   // Single definition of the global dispatch table
+   Float3Funcs gFloat3{};
+}