Summary

To give the developers more possibilities to influence the rendering of the icon on the QR code, I made the following extensions:

1. allow to specify if the border of the icon should have rounded corners
2. to give the QR code a cleaner look, I have added the option not to render the modules if they are hidden under the icon. This will result in an extended border, and it is no longer possible to have rounded corners.

This PR fixes/implements the following bugs/features:

• [ X] Decide, if the border of the icons has rounded corners or angular
• [ X] Decide, if the QR-Code should render modules, that are partly hidden behind the icon.

What existing problem does the pull request solve?

When rendering an icon on the qr-code, it doesn't provide a lot of possibilities to change the look of it. If someone dislikes the partly rendered modules, there was no possibility to change that.

Test plan
As there are no bigger changes and the code still uses the same methods no tests are added.
Under the following link, are two examples of the new feature. link to images

Closing issues

Fixes #230 #231