Adding testing page for Dictionary page after non-dict data page in same column-chunk

[mapleFU]

The spec doesn't disable the case that:

Dict Page | Dict Index Page | Data Page | Dict Index Page   

We need check:

1. Did we allowing this?
2. Should we add testing case for the case

[mapleFU]

cc @wgtmac

[wgtmac]

I think this is allowed from the spec: A column chunk might be partly or completely dictionary encoded. I'm not sure if any open source Parquet writer is able to produced such kind of data.