Version bump 8.31RR7 * Rework map load logic, * Support SiN map load, * Support track names, * Support N64 flags, * SDL3 build support (by Yamagi), * Fixes for sort render (by dkoreshkov), * Added cvar cl_laseralpha (by BjossiAlfreds), * VectorLength reduces complexity (by devnexen), * Sync with latest yquake 2 code.