Adding Square-2 Image preview for tools

[LucasAlfare]

Used the main ctx field of the image.js file to perform the polygon drawing. Aims to solve #161.

Preview examples

Scramble: (-4,-5) / (-1,-4) / (0,-2) / (0,-3) / (0,-5) / (-5,0) / (-3,-1) / (3,-3) / (-2,-2) / (-2,3) / (-5,1) / (-1,-3) / (0,3) / (-2,2) / (4,-1) / (1,2) / (4,-1) / (4,-3) / (3,2) / (5,-4) /

Scramble: (-4,-1) / (4,-2) / (2,-4) / (-1,-4) / (-2,-1) / (6,2) / (-3,5) / (6,-3) / (3,5) / (0,-5) / (-2,-3) / (-5,-2) / (0,6) / (4,0) / (2,3) / (4,-4) / (-3,3) / (-2,4) / (-3,-4) / (-3,-3) /

[LucasAlfare]

Please, implement it 😔🙏