* - add layernorm kernel
* success:add layernorm kernel and test
* fix: remove unusalble comments
* fix: modify code as reviewer suggested
* debug,modified .cu and test
* optional bias support
* overloading function
* fix bug after merging; remove time constrain in conv test
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Co-authored-by: kilinchange <kilinchange@163.com>
Co-authored-by: Haojie Wang <haojie0429@gmail.com>
xgqdut2016