Also move Lua scripts to share subfolder

share/scripts/remove_unknown_procs.lua

@@ -0,0 +1,44 @@
+ardour { ["type"] = "EditorAction", name = "Remove Unknown Plugins",
+	license     = "MIT",
+	author      = "Ardour Team",
+	description = [[Remove all unknown plugins/processors from all tracks and busses]]
+}
+
+function factory (params) return function ()
+	-- iterate over all tracks and busses (aka routes)
+	for route in Session:get_routes ():iter () do
+		-- route is-a http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Route
+		local i = 0;
+		-- we need to iterate one-by one, removing a processor invalidates the list
+		repeat
+			proc = route:nth_processor (i)
+			-- proc is a http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Processor
+			-- try cast it to http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:UnknownProcessor
+			if not proc:isnil () and not proc:to_unknownprocessor ():isnil () then
+				route:remove_processor (proc, nil, true)
+			else
+				i = i + 1
+			end
+		until proc:isnil ()
+	end
+end end
+
+
+function icon (params) return function (ctx, width, height, fg)
+	local txt = Cairo.PangoLayout (ctx, "ArdourMono ".. math.ceil (math.min (width, height) * .5) .. "px")
+	txt:set_text ("Fx")
+	local tw, th = txt:get_pixel_size ()
+	ctx:move_to (.5 * (width - tw), .5 * (height - th))
+	txt:layout_cairo_path (ctx)
+
+	ctx:set_source_rgba (ARDOUR.LuaAPI.color_to_rgba (fg))
+	ctx:set_line_width (3)
+	ctx:stroke_preserve ()
+
+	ctx:set_source_rgba (.8, .2, .2, 1)
+	ctx:set_line_width (2)
+	ctx:stroke_preserve ()
+
+	ctx:set_source_rgba (0, 0, 0, 1)
+	ctx:fill ()
+end end