Add more stylings for the corners square and dot options

[vnkapoor]

I want to add more style for the corners square and dot options. I want to add the corners styling as per below. Is there any way to customize this? Below is the reference image which types of styles I wants

[chrisspiegl]

This seems to be getting worked on in (and appears to be a duplicate of):

• #46

With pull request:

• https://github.com/kozakdenys/qr-code-styling/pull/274