Allow custom SSL options
Allow custom SSL options

Pass SSL options down to the websocket configuration. This change allows
the use of custom CA certificate files and allows SSL verification to be
disabled.

Signed-off-by: Rodrigo Chiossi <def771064bdf29e8a293cc90a7a0f5532fc44d42@gmail.com>

nlsdfnbch/bitfinex_wss,nlsdfnbch/btfxwss