File entropy view

[PROPHESSOR]

It would be useful to have entropy diagram of a file. It should work as the Histogram view works now. If nothing is selected, the full file entropy is shown, if there's some selection, the entropy for this fragment should be shown.

Also, it's useful when you can navigate through the file while moving the mouse through the entropy diagram with left button pressed (as it works in Hopper Disassembler, for example).

[solemnwarning]

I've been working on the backend analysis classes to support this on and off for a while now, so far I've got a fancy "scrollbar" showing the entropy of byte ranges to show:

I've also just added some logarithmic scale options thinking they would help for spotting areas of large files which have some data in them, but in retrospect I'm not so sure it actually helps... any feedback on what you would/wouldn't find helpful and why would be appreciated.