Added buoyancy to thruster controller
Added buoyancy to thruster controller

tsender/riptide_software,JustBenj/riptide_software,JustBenj/riptide_software,tsender/riptide_software,JustBenj/riptide_software,JustBenj/riptide_software,tsender/riptide_software,osu-uwrt/riptide-ros,tsender/riptide_software,osu-uwrt/riptide-ros