The Pacers have made some changes to their training camp roster, announcing today in a press release that they’ve signed free agent guard Langston Galloway, forward Justin Anderson, and center Norvel Pelle. Indiana previously had a full 20-man roster, so the team waived three players to make room for the new additions. Forward Bennie Boatwright and guards David Stockton and Gabe York have been cut and are on track to clear waivers on Sunday. All three of the newly-added Pacers have NBA experience. Galloway, in particular, has appeared in over 450 regular season games, spending time with the Knicks, Pelicans,…