IVGCVSW-3399 Add QSymm16 IsLayerSupportedTest to reference backend
* Refactor and add QSymm16 to IsDepthwiseConvolutionSupported
* Refactor and add QSymm16 to IsEqualSupported
* Refactor and add QSymm16 to IsGreaterSupported
* Refactor and add QSymm16 to IsSplitterSupported
* Refactor and add QSymm16 to IsStridedSliceSupported
* Refactor and add QSymm16 to IsMemCopySupported
* Refactor IsFakeQuantizationSupported
Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: I4f115a5535748fc22df8bc90b24b537fd5dd95b8