Method width

Bcore/src/main/cpp/Dobby/tests/catch.hpp:5202–5206

  }

  auto width(size_t newWidth) -> Column & {
    assert(newWidth > 0);
    m_width = newWidth;
    return *this;
  }
  auto indent(size_t newIndent) -> Column & {
    m_indent = newIndent;
    return *this;