1. Added 21 test scenarios to test the hipComplex functions on both host and device.
2. Modified the floating point comparisons with precision check.
Change-Id: I9edfb0c635ced255935087c85b77d3cc6a1a82e3
[ROCm/hip commit: 366f0462f2]
1.Rename include/hip/hcc_detail/ as include/hip/amd_detail/
2.Rename include/hip/nvcc_detail/ as include/hip/nvidia_detail/
3.Create __HIP_PLATFORM_AMD__ to replace __HIP_PLATFORM_HCC__
4.Create __HIP_PLATFORM_NVIDIA__ to replace __HIP_PLATFORM_NVCC__
After hcc_detail, nvcc_detail, __HIP_PLATFORM_HCC__ and __HIP_PLATFORM_NVCC__
have been removed from upstream, they will be removed from hip runtime.
Change-Id: I1ae457effd739d6c25bca203c1724b026be21fce
[ROCm/hip commit: c2adc70d4d]