[Immediate Data] Add internal slot [[immediate data]] in GPUBindingCommandsMixin #5117

// immediateData: {1, 2, 3, 4} => update [[immediate data]] to {1, 2, 3, 4}
renderPassEncoder.SetImmediateData(0, immediateData0.data(), immediateData0.size() * 4);
// Pipeline has layout with 12 bytes immediate data range.
renderPassEncoder.SetPipeline(Pipeline0);
// shader could access {1, 2, 3}  
renderPassEncoder.Draw(3);

// uint32_value = 6, => update [[immediate data]] to {1, 6, 3, 4}
renderPassEncoder.SetImmediateData(4,  &uint32_value, 4);
// Pipeline has layout with 8 bytes immediate data range.
renderPassEncoder.SetPipeline(pipeline1);
// shader could access {1, 6}
renderPassEncoder.Draw(3);

// Pipeline has layout with 16 bytes immediate data range.
renderPassEncoder.SetPipeline(pipeline2);
// shader could access {1, 6, 3, 4}
renderPassEncoder.Draw(3);

// Pipeline has layout with 0 bytes immediate data range.
renderPassEncoder.SetPipeline(pipeline3);
// shader access non immediate data values.
renderPassEncoder.Draw(3);

renderPassEncoder.End();