Thanks to ericGTT.

Signed-off-by: Viktor Gotwig <viktor.gotwig@q-loud.de>

Tests for:

* MOSQ_ACL_SUBSCRIBE acl check
* MOSQ_ERR_PLUGIN_DEFER with 2 auth-plugin
* Binary compatibility with v2 of auth-plugin

Signed-off-by: Pierre Fersing <pierre.fersing@bleemeo.com>

Signed-off-by: Thomas Pedley <me@shallax.com>

Thanks to Jean-Claude Wippler.

Bug: https://github.com/eclipse/mosquitto/issues/433

Thanks to Umberto Boscolo.

Bug: https://github.com/eclipse/mosquitto/issues/693

mosquitto_pub_topic_check2()
mosquitto_sub_topic_check2()
mosquitto_topic_matches_sub2()

Thanks to Aleksandr Makarov.

Bug: https://github.com/eclipse/mosquitto/issues/676

Fix issue when SSL_connect() returns SSL_ERROR_WANT_READ. A call to SSL_write here will later transmit a new client hello and make ssl connection fail.

Signed-off-by: JonoJensen <jono.jensen@yahoo.se>