implement scroll auto-sizing in sgt_listbox v:0.03.04
refactor all sgt_scroll to sgt_scrollbar v:0.03.02
fixed: sgt_logger open-close, sgt_listbox item_list displacement
fflush in sgt_logger replaced by open-close, from wine 8.8 not supported
replace string constants with numeric ones
added how_to_modding_step_by_step description
Added test app. for playing with it v:0.03.01
Initial commit v:0.03.00