pyges : Override ges_timeline_parse_launch_effect_new to make it accept None
pyges : Override ges_timeline_parse_launch_effect_new to make it accept None

freesteph/gst-editing-services,pitivi/gst-editing-services,cfoch/ges,cfoch/gst-editing-services,volodymyrrudyi/gst-editing-services,cfoch/gst-editing-services,volodymyrrudyi/gst-editing-services,MathieuDuponchelle/PitiviGes,freesteph/gst-editing-services,cfoch/gst-editing-services,MathieuDuponchelle/PitiviGes,volodymyrrudyi/gst-editing-services,pitivi/gst-editing-services,cfoch/ges,pitivi/gst-editing-services,cfoch/ges,MathieuDuponchelle/PitiviGes,cfoch/ges,pitivi/gst-editing-services,freesteph/gst-editing-services,cfoch/gst-editing-services,MathieuDuponchelle/PitiviGes