Porting additional SIMD Intrinsics to use SimdAsHWIntrinsic (#37882)

Porting additional SIMD Intrinsics to use SimdAsHWIntrinsic (#37882)

* Moving SIMDIntrinsicInit to use SimdAsHWIntrinsic

* Optimize the simple case of Create(0) and Create(-1) to get_Zero and get_AllBitsSet

* Adding a new gtNewSimdCreateBroadcastNode method

* Updating SIMDIntrinsicGetOne to use SimdAsHWIntrinsic

* Fixing build errors

* Ensure all forms of ToScalar are intrinsic on x86

* Moving SIMDIntrinsicDot to use SimdAsHWIntrinsic

* Removing SIMDIntrinsicDot, SIMDIntrinsicAdd, SIMDIntrinsicMul, and SIMDIntrinsicDiv

* Removing SIMDIntrinsicGetCount, SIMDIntrinsicGetOne, SIMDIntrinsicGetAllOnes, and SIMDIntrinsicGetZero

* Default TYP_SIMD12 constants to be 16 bytes

* Get the simdType from the size for LowerHWIntrinsicDot

* Applying formatting patch

* Use AddPairwise for floating-point dot product

* Applying formatting patch

* Correctly handle decomposed long constants on x86

* Check JitConfig.EnableHWIntrinsic when in impSIMDIntrinsic or impSimdAsHWIntrinsic

* Ensure AdvSimd.Arm64.Multiply is used for TYP_DOUBLE

* Applying formatting patch

* Updating LowerHWIntrinsicCreate to handle TYP_SIMD8 retyped as TYP_DOUBLE and fixing VectorT128_get_One

* Ensure the CreateBroadcast SimdAsHWIntrinsic nodes have the correct gtType

* Applying formatting patch

* Apply suggestions from code review

Co-authored-by: Carol Eidt <carol.eidt@microsoft.com>
* Adding some additional clarifying comments

* Breaking NI_Vector256_ToScalar importation logic into its own checks

* Applying formatting patch

Co-authored-by: Carol Eidt <carol.eidt@microsoft.com>