Cleanup SuperVectorization dialect printing and parsing.

On the read side,
```
%3 = vector_transfer_read %arg0, %i2, %i1, %i0 {permutation_map: (d0, d1, d2)->(d2, d0)} : (memref<?x?x?xf32>, index, index, index) -> vector<32x256xf32>
```

becomes:

```
%3 = vector_transfer_read %arg0[%i2, %i1, %i0] {permutation_map: (d0, d1, d2)->(d2, d0)} : memref<?x?x?xf32>, vector<32x256xf32>
```

On the write side,

```
vector_transfer_write %0, %arg0, %c3, %c3 {permutation_map: (d0, d1)->(d0)} : vector<128xf32>, memref<?x?xf32>, index, index
```

becomes

```
vector_transfer_write %0, %arg0[%c3, %c3] {permutation_map: (d0, d1)->(d0)} : vector<128xf32>, memref<?x?xf32>
```

Documentation will be cleaned up in a followup commit that also extracts a proper .md from the top of the file comments.

PiperOrigin-RevId: 241021879