Add python3-mako, python3-cheetah and python3-numpy as build dependencies

.appveyor.yml

@@ -71,7 +71,7 @@ for:
             libxml2-dev bison flex ffmpeg  libpostproc-dev libavcodec-dev libavformat-dev \
             libopus-dev libcodec2-dev libairspy-dev libhackrf-dev \
             libbladerf-dev libsoapysdr-dev libiio-dev \
-            python-mako \
+            python3-mako python3-cheetah python3-numpy \
             autoconf automake libtool
       - sh: if [[ ! "${CMAKE_CUSTOM_OPTIONS}" =~ "ENABLE_EXTERNAL_LIBRARIES=ON" ]]; then bash cmake/ci/build_cm256cc.sh; fi
       - sh: if [[ ! "${CMAKE_CUSTOM_OPTIONS}" =~ "ENABLE_EXTERNAL_LIBRARIES=ON" ]]; then bash cmake/ci/build_mbelib.sh; fi

debian/control

@@ -27,7 +27,9 @@ Build-Depends: debhelper (>= 9),
  libopus-dev,
  libairspy-dev,
  libhackrf-dev,
- python-mako
+ python3-mako
+ python3-cheetah
+ python3-numpy
 # TODO:
 #   - more dependencies based on version; newer has more devices
 #   - manage dependencies not present upstream