Fixed QtCaptureTest saturation slider: missing event callback connection
Fixed QtCaptureTest saturation slider: missing event callback connection

trcwm/openpnp-capture,openpnp/openpnp-capture,trcwm/openpnp-capture,trcwm/openpnp-capture,openpnp/openpnp-capture,trcwm/openpnp-capture,openpnp/openpnp-capture,openpnp/openpnp-capture,trcwm/openpnp-capture,openpnp/openpnp-capture,trcwm/openpnp-capture,openpnp/openpnp-capture