examples: asio ssl example demonstrating both server and client

By default it uses simple client connecting to https address. It is
possible to configure both server and client. As for example test the
configuration of both server and client connecting to each other on

examples/protocols/asio/ssl_client_server/example_test.py

@@ -0,0 +1,15 @@
+from __future__ import unicode_literals
+import ttfw_idf
+
+
+@ttfw_idf.idf_example_test(env_tag='Example_GENERIC')
+def test_examples_asio_ssl(env, extra_data):
+
+    dut = env.get_dut('asio_ssl_client_server', 'examples/protocols/asio/ssl_client_server')
+    dut.start_app()
+
+    dut.expect('Reply: GET / HTTP/1.1')
+
+
+if __name__ == '__main__':
+    test_examples_asio_ssl()