Sorry didn't quite understand your question, apologies for the confusion. Anyhoo, here's how to do it.
Click Edit
> Preferences
, and select Bitmaps
and scroll down to Import
Set up as follows:

Now when you import a bitmap, the zoom blur rendering is switched off, so you will be able to see sharp pixel boundaries when you zoom in.raster/bitmap image
Here's a screenshot of a raster/bitmap image zoomed in with overlaid vector

Edit: after some chat with the OP @shrimpwagon who discovered that this fix doesn't work for images already placed in the file, it is possible to fix that by editing the XML
style: image-rendering:optimizeSpeed
Also when importing, shrimpwagon discovered that this dialog also appears if you have the "Ask about linking and scaling when importing" option checked in the import preferrences.

So, if you get this - choose blocky!!!