Add set_angle 'immediate' parameter. (#357)

* Add set_angle 'immediate' parameter.
Modified fade_in transition to happen between :setup and :ready so that :ready don't start before fade_in is finished.

* docs: Automatic update of API docs

* Same fixes in style and removed a useless test.

Co-authored-by: StraToN <StraToN@users.noreply.github.com>

game/rooms/room01/esc/room01.esc

@@ -12,4 +12,9 @@
 
 :ready
 set_sound_state bg_music res://game/sfx/contemplation.ogg true
+
 walk player r1_destination_point
+wait 2
+walk player r1_destination_point2
+wait 2
+set_angle player 225 false