[Feature Request] Consider support int4/uint4 for reshape op of default CPU EP

[lisa0314]

Describe the feature request

ONNX opset 21 added support for int4 and uint4 of reshape op. So I suppose default CPU EP should support int4 and uint4 data type for reshape op.

Describe scenario use case

For WebNN use case, we need to insert reshape before scale and zeroPoint for dequantizeLinear implementation since ONNX constrains scale and zeroPoint(if exits) must be 1D tensor for per-axis dequantizeLinear. In some scenarios, the data type of zero_point is int4 or uint4.