Fix: Modified and corrected the pnccd dark notebook.

@ahmedk Hi Karim,

I have corrected pnCCD dark notebook so that it has the correct blocksize (verified by Steffen), correct common mode definition and it sends the correct offsetmap into the database. I also added a bunch of diagnostic tables and graphs. Misha knows about these issues but his name is not listed under the "Assignees" so I had to add you instead. Sorry.

Cheers, Kiana