add radarr build files

build/scripts/radarr.sh

@@ -0,0 +1,12 @@
+## Environment
+export_env RADARR_DATA /host/var/lib/radarr
+
+## Dependencies
+apt_install_permanent libmono-cil-dev mediainfo
+
+## Radarr
+RADARR_TAG=$(curl -sX GET "https://api.github.com/repos/Radarr/Radarr/releases" | awk '/tag_name/{print $4;exit}' FS='[""]')
+mkdir -p /opt/radarr
+wget -O /tmp/radar.tar.gz \
+    "https://github.com/Radarr/Radarr/releases/download/${RADARR_TAG}/Radarr.develop.${RADARR_TAG#v}.linux.tar.gz"
+tar ixzf /tmp/radar.tar.gz -C /opt/radarr --strip-components=1