allow multiple TNS matches to be returned

[griffin-h]

The original TNS query function I wrote only takes the first result, because I assumed there would never be more than one. I found an example, where there are two transients in the TNS that are within 2" of each other: AT 2017ecd and AT 2024ifa. In this case, I think we should return both matches, so that the TOM can check if either of the names already matches. Otherwise we'll use the most recent one.

[jrastinejad]

Testing locally and I see both TNS matches.