add use_fp16

From: @chenzupeng
Reviewed-by: 
Signed-off-by:

From: @sishuikang
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by: @zhanghaibo5

From: @sishuikang
Reviewed-by: 
Signed-off-by:

From: @anancds
Reviewed-by: @xsmq,@zh_qh
Signed-off-by: @zh_qh

From: @xukailun_1
Reviewed-by: @wuxuejian,@liangchenghui
Signed-off-by: @wuxuejian

From: @jiangzg001
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @wuxuejian

fix some bugs

From: @anancds
Reviewed-by: 
Signed-off-by:

From: @jachua
Reviewed-by: @zhunaipan,@liangchenghui
Signed-off-by: @liangchenghui

From: @wang_shaocong
Reviewed-by: @hangangqiang
Signed-off-by:

From: @louie5
Reviewed-by: @ouwenchang,@ouwenchang
Signed-off-by:

From: @wangshuide2020
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @ngtony
Reviewed-by: 
Signed-off-by:

From: @changzherui
Reviewed-by: @guoqi1024,@kingxian
Signed-off-by: @guoqi1024

From: @xsmq
Reviewed-by: @kisnwang,@zhoufeng54
Signed-off-by: @zhoufeng54

From: @jiangzg001
Reviewed-by: @liangchenghui
Signed-off-by: @liangchenghui

From: @lihongkang1
Reviewed-by: @liangchenghui,@ljl0711
Signed-off-by: @liangchenghui

From: @sunsuodong
Reviewed-by: @xsmq,@zhoufeng54
Signed-off-by: @xsmq

From: @TFbunny
Reviewed-by: 
Signed-off-by:

From: @qujianwei
Reviewed-by: 
Signed-off-by:

From: @david-he91
Reviewed-by: 
Signed-off-by:

From: @wangshuide2020
Reviewed-by: @ljl0711,@liangchenghui
Signed-off-by: @liangchenghui

fix for copyright

fix for create_dataset

fix for some bug

fix for parser_output

fix for parse output

add readme and fix for some bug

fix test2016 to test

delete space

fix some bug for create dataset

fix for comments and overflow

fix a wrong bug

fix for weight init

From: @sunsuodong
Reviewed-by: @HilbertDavid,@xsmq
Signed-off-by: @xsmq

From: @youui
Reviewed-by: 
Signed-off-by:

From: @yanglf1121
Reviewed-by: 
Signed-off-by:

From: @cathwong
Reviewed-by: @robingrosman,@nsyca
Signed-off-by: @robingrosman

From: @tom__chen
Reviewed-by: 
Signed-off-by:

From: @luoyang42
Reviewed-by: @robingrosman,@nsyca
Signed-off-by: @robingrosman

From: @zsj_mind
Reviewed-by: @zh_qh,@zhoufeng54
Signed-off-by: @zh_qh

From: @TFbunny
Reviewed-by: @tom__chen,@robingrosman
Signed-off-by: @robingrosman

From: @xiefangqi
Reviewed-by: 
Signed-off-by:

From: @wangdongxu6
Reviewed-by: @ddwsky,@zhanghaibo5
Signed-off-by: @ddwsky

From: @liubuyu
Reviewed-by: @kisnwang,@zhoufeng54
Signed-off-by: @zhoufeng54