NativeArray interface constrained to read-only operation.
| Length | Number of elements in the NativeArray.ReadOnly. |
| this[int] | Read-only access to NativeArray.ReadOnly elements by index. |
| CopyTo | Copy all elements to a NativeArray or managed array of the same length. |
| Reinterpret | 将数组重新解释为具有不同的数据类型（类型双关）。 |
| ToArray | Convert the data in this NativeArray.ReadOnly to a managed array. |