Support for ReshapedArrays or add a LinearView

```
A = drand(64, 64)
A[1:10] .= 1
```

Will create a `View{ReshapedArray{DArray{Array}}}` this multiple levels of nesting is quite nasty and annoying. We either need to deal with ReshapedArrays in a principled manner or add a `LinearView`, that only supports reshaping DArrays into 1-dimensional arrays. This potentially will create striped patterns and eventually will encounter #183.