Kontakt can import any file format you've ever heard of, including soundfonts.
But you'll lose a great deal in the process unless you're willing to spend a lot of time recreating the instrument in Kontakt, because an instrument (or "program" in DP-speak) is more than just a collection of samples. It'll be far easier to just continue using those libraries in Dim Pro.
I can think of at least one scenario wherein you might want to go to the bother, though. That would be collecting a bunch of different Dim Pro sounds into one instrument for convenience. I've done that sort of thing with percussion effects, such as taking my favorite handclaps from one library, a favorite tambourine from another, weird sounds and odds 'n ends from various libraries and outboard synths, and combining them all into one Kontakt instrument.
Being able to import Dim Pro libraries wouldn't be a compelling reason to get Kontakt, IMO. But there are plenty of other compelling reasons.