Update to gnuradio 3.10/3.11#13

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bkerler wants to merge 7 commits intoBastilleResearch:masterfrom

bkerler:maint-3.10

Commits on Dec 31, 2019

Port to gnuradio 3.8 and python3
Bjoern Kerler
committed

Commits on Aug 9, 2021

Gnuradio 3.9 support
Bjoern Kerler
committed

Commits on Mar 19, 2022

Fix grc
Bjoern Kerler
committed
Update grc, remove swig
Bjoern Kerler
committed

Commits on Mar 24, 2022

Fix ffft filter
Bjoern Kerler
committed

Commits on Sep 3, 2022