[mlir][tensor] Add new builders for insert_slice/extract_slice Ops (nfc) (#169533)

Adds new builders for `tensor.insert_slice` and `tensor.extract_slice`
Ops for which the _offsets_ and the _strides_ are all 0s and 1s,
respecitvely. This allows us to write:
```cpp
// No offsets and no strides - implicitly set to 0s and 1s,
// respectively.
tensor::InsertSliceOp::create(rewriter, loc, src, dest, writeSizes);
```

instead of:
```cpp
// Strides are initialised explicitly to 1s
Attribute oneIdxAttr = rewriter.getIndexAttr(1);
SmallVector<OpFoldResult> writeStrides(destRank, oneIdxAttr);

// Offsets are initialised explicitly to 0s
Attribute zeroIdxAttr = rewriter.getIndexAttr(0);
SmallVector<OpFoldResult> writeOffsets(destRank, zeroIdxAttr);

tensor::InsertSliceOp::create(rewriter, loc, src, dest, writeOffsets,
                              writeSizes, writeStrides);
```