Add ONNX parsing for SimplifiedLayerNormalization #19532

Job	Run time
cancel	7s
linux (ubuntu-20.04, debug)	28m 22s
linux (ubuntu-20.04, release)	1h 19m 19s
licensing	4m 45s
linux (ubuntu-20.04, codecov)	1h 13m 26s
linux-fpga (ubuntu-20.04, debug)	29m 2s
Check if image exists in registry	5s
pyflakes	3m 46s
Build image	0s
Build SLES image	0s
tidy	6m 15s
cppcheck	45m 29s
format	4m 8s
sles	27m 12s
	5h 1m 56s

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