[mlir][MemRef] Simplify extract_strided_metadata(subview)

[mlir][MemRef] Simplify extract_strided_metadata(subview)

Add a dedicated pass to simplify
extract_strided_metadata(other_op(memref)).

Currently the pass features only one pattern:
extract_strided_metadata(subview).
The goal is to get rid of the subview while materializing its effects on
the offset, sizes, and strides with respect to the base object.

In other words, this simplification replaces:
```
baseBuffer, offset, sizes, strides =
    extract_strided_metadata(
        subview(memref, subOffset, subSizes, subStrides))
```

With

```
baseBuffer, baseOffset, baseSizes, baseStrides =
    extract_strided_metadata(memref)
strides#i = baseStrides#i * subSizes#i
offset = baseOffset + sum(subOffset#i * strides#i)
sizes = subSizes
```

Differential Revision: https://reviews.llvm.org/D133166