TST: Add accuracy tests for FP16 umath functions
TST: Add accuracy tests for FP16 umath functions

mhvk/numpy,endolith/numpy,mattip/numpy,numpy/numpy,mhvk/numpy,charris/numpy,numpy/numpy,endolith/numpy,charris/numpy,mattip/numpy,numpy/numpy,mattip/numpy,charris/numpy,mhvk/numpy,mhvk/numpy,numpy/numpy,mattip/numpy,endolith/numpy,charris/numpy,mhvk/numpy,endolith/numpy