Added canvas mode;
Resizing on canvas mode;
Zoom by touchpad and Command + Scroll;
Move on canvas layout by scroll and Space + Mouse Drag;
Changed design and code places;
Zoom work on press 1-9, +, - keys;
The initial state runs on 0 or Escape press;
Added canvas mode; Resizing on canvas mode; Zoom by touchpad and Command + Scroll; Move on canvas layout by scroll and Space + Mouse Drag; Changed design and code places; Zoom work on press 1-9, +, - keys; The initial state runs on 0 or Escape press;