Add location option to QR code generator

[MedwardR]

Wonderful app by the way!

Data type:
https://developer.android.com/reference/android/location/Location.html

Here's an example of an app with this feature:
https://github.com/SecUSo/privacy-friendly-qr-scanner

Thank you!

[tomfong]

This has been implemented in the new version 4.1.0.
Please update the app when it is available.
Please create another issue if the update does not meet your expectation.