Implement commands for executing all tests on connected Android devices

Implement commands for executing all tests on connected Android devices

* test/infra/android/test-controller.el (ats-upload-test):
Correct minor encoding error.  Transfer solitary files without
creating a tar archive, and handle `resources' directories.
(ats-list-tests-locally, ats-list-tests): Don't list files in
`resources' directories.  Insert test header locally, and
redisplay after insertion.
(ats-run-all-tests): New function.

(cherry picked from commit 55768eaaaac0702dea9bb686b932af24434c26cb)