Add Kill Count to weapon detail

[tednaleid]

Kill Count is in DIM and it has a couple of uses that make it something that I miss in VZ.

I use it when sharing with other folks to show how much I'm using a weapon, sometimes numbers in the 4+ digits get a reaction.

Also, when I'm trying to figure out which weapon is the one I most commonly use, I'll pick the one with the higher kill count.

[rslifka]