[geom] privatize bvh headers that are only used by cxx files and mv to builtins folder - #23397

[geom] privatize bvh headers that are only used by cxx files and mv to builtins folder#23397

ferdymercury wants to merge 4 commits into

root-project:masterroot-project/root:masterfrom

ferdymercury:bvhferdymercury/root:bvhCopy head branch name to clipboard