[BUG] Incorrect unit of wind when it's in mps

[Qiushi Jin]

Hi, I'm trying to use vATIS these days since the AFV atis robot is not working. I have to say it's great and I really love the feature that controllers can choose the TTS engines they want. However, I found that when the wind in METER is in MPS, the FULL_WX_STRING in ATIS message still shows KT though the main interface of vATIS shows correct unit.