MILWAUKEE (CBS 58) — If you’ve ever walked through 3rd Street Market Hall, you may have seen people waving their arms, laughing, and yelling at each other. No, they’re not losing it — they’re inside a virtual world! True Echo VR is open and ready for families, friends, and coworkers. CBS 58’s Bill Walsh and Amanda Porterfield tried it out and CBS 58 photojournalist Nathan Svacina captured the experience…