Build support for android:

- added fdroid.init

buildozer/fdroid.init

@@ -0,0 +1,33 @@
+#!/bin/bash
+set -eux
+
+tmpdir=..
+cardsets_dir=PySolFC-Cardsets--Minimal-2.1.0
+cardsets_file=${cardsets_dir}.tar.xz
+
+echo '### prepare source'
+
+(cd .. && make rules && make all_games_html && make mo)
+
+cp -a main.py ${tmpdir}
+mkdir -p ${tmpdir}/data/images/cards/bottoms/trumps-only
+echo "" > ${tmpdir}/data/images/cards/bottoms/trumps-only/.keep
+
+echo '### prepare cardsets'
+
+./mkcards
+
+cp -a ${cardsets_dir}/* ${tmpdir}/data
+
+echo '### eval version'
+
+./version.py > ${tmpdir}/version.txt
+
+echo '### prepare buildozer'
+
+sed -r "s:#? ?source.dir =.*:source.dir = ..:" -i buildozer.spec
+sed -r "s:#? ?source.exclude_dirs =.*:source.exclude_dirs = Screenshots,android,buildozer,tests:" -i buildozer.spec
+sed -r "s:#? ?source.exclude_patterns =.*:source.exclude_patterns = README.*,AUTHORS.md,CONTRIBUTING.md,COPYING,MANIFEST.in,Makefile,NEWS.asciidoc,appdata.xml,pysol.py,run-tests.pl,setup.cfg,setup.py,setup_osx.py,local.properties,p4a_env_vars.txt:" -i buildozer.spec
+sed -r "s:#? ?android.skip_update =.*:android.skip_update = True:" -i buildozer.spec
+
+echo '### end init'