Air weapons not tracked correctly by the IADS in latest open beta

[baleBaron]

Since version 2.8.3.37556 of DCS, HARMs or other air weapons are not tracked correctly by the IADS.

After SkynetIADS.evaluateContacts(self) is run, only a single HARM or other air weapon is kept in the track file.
contact:getName() returns nothing, or a blank name, so when merging contacts all but the first one is rejected.

If I do a dirty workaround like this in skynet-iads.lua on line 494 it works as expected again
if iadsContact:getDCSRepresentation().id_ == contact:getDCSRepresentation().id_ then

I am sure someone can come up with a cleaner fix than this. :)

[MacFlorent]

I noted the same thing and was about to suggest the same correction. What you propose in your PR seems good to me.