Although Yeelight support was promised by Vera some months ago, I got impatient and had a project that needed to get done, so I rolled by own. At this point, I probably will not release it officially (through the marketplace and AltAppStore), pending whatever the outcome of Vera’s efforts, but in the interim, if anyone else finds it useful, here it is.
Download releases from the Github repository, here: https://github.com/toggledbits/Yeelight-Vera/releases
Installation instructions are in the README file in the Github repo.
2019-01-05: Version 0.1, initial release. Set on/off, brightness, color temperature, RGB color, using Vera-standard Dimmable RGB Light service and device type. SSDP discovery of bulbs (requires that you first enable “LAN Control” on the bulb using the Yeelight mobile app).