* always run tests from tarball of `make dist`

ensures that tests will not pass if critical files are omitted from releases

* add explicit make dist only for non-default builds

distcheck should already cover this for default builds

* don’t verify that valgrind/coverage tests can be run from dists

* add various files missing from dists

- missing template from cmake
- add missing android build files
- add some missing ci_build.sh scripts