Billy Porter has a reason to rejoice this LGBTQ+ Pride season. The Emmy, Grammy and Tony Award winner is adding a new feather to his wide-brimmed chapeau with a newly announced first-look deal with FX Productions, the same company that propelled him to meteoric fame with “Pose.” Under the agreement, he will develop content via his new production company, Incognegro — described as focusing on Black and LGBTQIA narratives and will work across TV, film, music, theater and fashion platforms. “I’m so glad I’ve been blessed to live long enough to see this day. The day where my queerness was my liabi…