Also move Lua scripts to share subfolder

scripts/s_fader_automation.lua

@@ -1,58 +0,0 @@
-ardour { ["type"] = "Snippet", name = "Fader Automation" }
-
-function factory () return function ()
-	local playhead = Session:transport_sample ()
-	local samplerate = Session:nominal_sample_rate ()
-
-	-- get selected tracks
-	rl = Editor:get_selection ().tracks:routelist ()
-
-	-- prepare undo operation
-	Session:begin_reversible_command ("Fancy Fade Out")
-	local add_undo = false -- keep track if something has changed
-
-	-- iterate over selected tracks
-	for r in rl:iter () do
-		local ac = r:amp ():gain_control () -- ARDOUR:AutomationControl
-		local al = ac:alist () -- ARDOUR:AutomationList (state, high-level)
-
-		-- set automation state to "Touch"
-		ac:set_automation_state (ARDOUR.AutoState.Touch)
-
-		-- query the value at the playhead position
-		local g = al:eval (playhead)
-
-		-- get state for undo
-		local before = al:get_state ()
-
-		-- delete all events after the playhead...
-		al:truncate_end (playhead)
-
-		-- ...and generate some new ones.
-		for i=0,50 do
-			-- use a sqrt fade-out (the shape is recognizable, and otherwise
-			-- not be possible to achieve with existing ardour fade shapes)
-			al:add (playhead + i * samplerate / 50,
-			        g * (1 - math.sqrt (i / 50)),
-			        false, true)
-		end
-
-		-- remove dense events
-		al:thin (20)
-
-		-- save undo
-		local after = al:get_state ()
-		Session:add_command (al:memento_command (before, after))
-		add_undo = true
-
-		::out::
-	end
-
-	-- all done, commit the combined Undo Operation
-	if add_undo then
-		-- the 'nil' Commend here mean to use the collected diffs added above
-		Session:commit_reversible_command (nil)
-	else
-		Session:abort_reversible_command ()
-	end
-end end