Plus other minor update, make openssl aware of current modes (SSL_set_mode)
Update coding style in examples and tests, including copyright notices
* Original commit: espressif/esp-idf@1c8171c3e8
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
* Original commit: espressif/esp-idf@213bbe51fc
