adding another translation to the 'ZXing-based third-party open source projects' table

[Edward]

Hi

First: thanks for the great work!

Would you be so kind to add another translation to the 'ZXing-based third-party open source projects' table?

Module: ZXing Delphi -> Link to https://github.com/Spelt/ZXing.Delphi
Description: Port to native Delphi object pascal, targeted at Firemonkey compatible devices (IOS/Android/Win/OSX) and VCL.

Sincerely,
Edward

[Sean Owen]

Sure can you open a pull request with the change to README.md?