add broadcom as open vsx adopter

Created by: dezkolakatus

Project Name = "Eclipse Open VSX"

Name: Broadcom Inc. Website: https://www.broadcom.com/solutions/mainframe Logos Important: Please attach your logos in svg or png format, zipped if svg. Please note that we require both color options for logos for distribution purposes.

We need color logo with transparent background. We also need white logo with a transparent background.