I need to add liborc-0.4-dev package to built at kubuntu 20

[mdoallo]

Hi,
First of all I would like to thank for this code.
I just installed a new kubuntu 20.04.2 LTS to test this code. I installed GNR Radio 3.8.1.0 (Python 3.8.5) with all dependencies, using apt-get.
Then, I read the README.md from here and could compile well. Just I had to add liborc-0.4-dev package.
So I propose to include liborc-0.4-dev package at Dependencies.
Besides I would like to contribute with the project.
Best regards.
Marcelo