【Hackathon No.54】为 Paddle allclose、isclose 算子实现 float16 数据类型支持

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性能数据

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op	shape_x	shape_y	r	a	fp32	fp16	r
allclose	16, 10, 100	16, 10, 100	1.00E-05	1.00E-08	0.021078149	0.020767961	0.985283934
	16, 256, 10, 10	16, 256, 10, 10	1.00E-05	1.00E-08	0.042876175	0.040978315	0.955736245
isclose	1700971, 1	1700971, 1	1.00E-05	1.00E-08	0.045994107	0.039539045	0.859654598
	1700971, 100	1700971, 100	1.00E-05	1.00E-08	0.045717492	0.039359988	0.860939346

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[luotao1]

close due to the following PR is merged:

• No.54：为 Paddle allclose、isclose 算子实现 float16 数据类型支持 #51168