Downstream Keyer 0.2.6

Add obs-websocket vendor requests and event
Vendor: downstream-keyer
Requests:

• get_downstream_keyers
• get_downstream_keyer
  • dsk_name
• dsk_select_scene
  • dsk_name
  • scene
• dsk_add_scene
  • dsk_name
  • scene
• dsk_remove_scene
  • dsk_name
  • scene
• dsk_set_tie
  • dsk_name
  • tie boolean
• dsk_set_transition
  • dsk_name
  • transition
  • transition_type
    • match
    • show
    • hide
• dsk_add_exclude_scene
  • dsk_name
  • scene
• dsk_remove_exclude_scene
  • dsk_name
  • scene

event dsk_scene_changed

• dsk_name
• new_scene
• old_scene

OBS version 28 support

Add option to exclude program scenes per DSK tab

fix output channel to large

fix crash when starting with OBS 27.1 RC1 or higher

• add show and hide transition options
• add tie option, allowing you to transition the DSK when the next global transition occurs.

fix transition reference leak (crash on shutdown)

Fix translation loading

• fix transition memleak (crash on shutdown)
• add hotkeys

add multiple DSK support