Add gr-dect2

[catalinalb]

Steps for installing gr-dect2 after GQRX, gr-gsm, qspectrumanalyzer and binwalk have been installed on my ubuntu 18.04 LTS (Gnuradio 3.7 installation from source):

cd install/src
git clone git://github.com/pavelyazev/gr-dect2.git
cd gr-dect2
git checkout pyqt4
mkdir build
cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/home/ctl/install/sdr (where ctl is my username)
make
sudo make install
sudo ldconfig

then you can start gnuadio-companion and open the dect2_Hackrf.grc flowgraph situated in gr-dect2/grc
More info:
https://www.youtube.com/watch?v=AlfABN_beQg

Thank you,
Catalin