CUCOMPLEX API supported by HIP

1. cuComplex Data types

CUDA	A	D	R	HIP
`cuComplex`				`hipComplex`
`cuDoubleComplex`				`hipDoubleComplex`
`cuFloatComplex`				`hipFloatComplex`

2. cuComplex API functions

CUDA	A	D	R	HIP
`cuCabs`				`hipCabs`
`cuCabsf`				`hipCabsf`
`cuCadd`				`hipCadd`
`cuCaddf`				`hipCaddf`
`cuCdiv`				`hipCdiv`
`cuCdivf`				`hipCdivf`
`cuCfma`				`hipCfma`
`cuCfmaf`				`hipCfmaf`
`cuCimag`				`hipCimag`
`cuCimagf`				`hipCimagf`
`cuCmul`				`hipCmul`
`cuCmulf`				`hipCmulf`
`cuComplexDoubleToFloat`				`hipComplexDoubleToFloat`
`cuComplexFloatToDouble`				`hipComplexFloatToDouble`
`cuConj`				`hipConj`
`cuConjf`				`hipConjf`
`cuCreal`				`hipCreal`
`cuCrealf`				`hipCrealf`
`cuCsub`				`hipCsub`
`cuCsubf`				`hipCsubf`
`make_cuComplex`				`make_hipComplex`
`make_cuDoubleComplex`				`make_hipDoubleComplex`
`make_cuFloatComplex`				`make_hipFloatComplex`

* A - Added, D - Deprecated, R - Removed