Feature/scroll (#22)

* base scroll implementation

* add scroll collection example
mofidy scrolls, fix callback calls

* unhover button if start swipe
notify input components on swipe

* add node center offset, calc by pivots
modify with with node center scroll (to correct scroll to point)

* Refactor, add some docs

* fix: set_pos on end on scroll

* add gui.animate speed in settings

druid/base/button.lua

@@ -76,6 +76,7 @@ function M.on_input(instance, action_id, action)
 		end
 
 		if action.released then
+			set_hover(instance, false)
 			return on_button_release(instance)
 		else
 			set_hover(instance, true)
@@ -90,6 +91,13 @@ function M.on_input(instance, action_id, action)
 end
 
 
+function M.on_swipe(instance)
+	-- unhover button if start swipe
+	instance.can_action = false
+	set_hover(instance, false)
+end
+
+
 function M.tap_scale_animation(instance)
 	ui_animate.scale_to(instance, instance.anim_node, instance.scale_to,
 		function()