message: gltfpack: Fix texture quality rounding
  The intent of +1 was to round to nearest, but we need to add 50 for that
  (half of the divisor).
diff: @@ -2745,7 +2745,7 @@ bool encodeBasisFile(const char* input, const char* output, bool normal_map, int
  std::string cmd = "basisu";
  char ql[16];
  - sprintf(ql, "%d", (quality * 255 + 1) / 100);
  + sprintf(ql, "%d", (quality * 255 + 50) / 100);
  cmd += " -q ";
  cmd += ql;
  