Method getIndentSize

libraries/XMLWriter/XMLWriter.h:107–107

  //  multiple of 2;
  void    setIndentSize(const uint8_t size = 2) { _indentStep = size; };
  uint8_t getIndentSize() { return _indentStep; };
  //  for manual layout control
  void incrIndent()       { _indent += _indentStep; };
  void decrIndent()       { _indent -= _indentStep; };