Long Vector Execution Tests: Float Specific Ops

[alsepkow]

Completed	Intrinsic	DXIL OpCode	LLVM Instruction	Basic Op Type	Notes
	f16tof32	LegacyF16ToF32		Unary	Not required. Legacy* ops were cut for long vector support
	f32tof16	LegacyF32ToF16		Unary	Not required. Legacy* ops were cut for long vector support
	isfinite	IsFinite		Unary
	isinf	IsInf		Unary
	isnan	IsNan		Unary
	modf	Round_z	FSub, Store	Unary	Has a return value and an ouput value.
	fmod	FAbs, Frc	FDiv, FNeg, FCmpOGE, Select, FMul	Binary