[Arm64] Vectorize System.Numerics.Matrix4x4 using hardware intrinsics

[echesakov]

System.Numerics.Matrix4x4.Transpose()
System.Numerics.Matrix4x4.Lerp()
System.Numerics.Matrix4x4.operator-()
System.Numerics.Matrix4x4.operator+()
System.Numerics.Matrix4x4.operator*()
System.Numerics.Matrix4x4.operator==()
System.Numerics.Matrix4x4.operator!=()

[BruceForstall]

Related: #33308

[BruceForstall]

I'm moving this to Future, as there is no current plan to do the work for .NET 5.

[jeffhandley]

This work is being picked up by the .NET Libraries team; assigned to @tannergooding now.

[eanova]

@tannergooding Hi, I've been unavailable for the past month. I'd like to finish these Matrix4x4 tasks plus Inversion if you haven't assigned it to someone else already.

[tannergooding]

This is something I've actually already finished locally and will be getting up a PR for either later tonight or early Monday. Thanks however!

[BruceForstall]

@tannergooding Is this still in progress?

[tannergooding]

Yes, just trying to work through some ARM64 specific failures: #40054