Basalt 1.7 Update

- New Objects (Flexbox, Graph, Treeview)
- Pluginsystem to add/remove functionality
- Reworked the entire Object system, instead of one big Object Class we have multiple classes: Object, VisualObject, ChangeableObject
- Instead of one big Frame Class we have multiple Frame Classes: BaseFrame, Frame, MovableFrame, ScrollableFrame, MonitorFrame, Flexbox
- Removed the Animation Object, and added a animation plugin instead
- Removed the Graphic Object and merged it's functionality with the image object
- Updated currently existing objects

docs/docs1_6/objects/Timer.md

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+Timers can call your functions delay and repeat it as often as you wish
+<br>
+
+## setTime
+sets the time the timer should wait after calling your function
+
+#### Parameters: 
+1. `number` the time to delay
+2. `number` how often it should be repeated -1 is infinite
+
+#### Returns:
+1. `object` The object
+
+```lua
+local mainFrame = basalt.createFrame()
+local aTimer = mainFrame:addTimer()
+aTimer:setTime(2)
+```
+```xml
+<timer time="2" repeat="1"/>
+```
+
+## start
+Starts the timer
+
+#### Returns:
+1. `object` The object
+
+```lua
+local mainFrame = basalt.createFrame()
+local aTimer = mainFrame:addTimer()
+aTimer:setTime(2):start()
+```
+```xml
+<timer time="2" start="true"/>
+```
+
+## cancel
+Cancels the timer
+
+#### Returns:
+1. `object` The object
+
+```lua
+local mainFrame = basalt.createFrame()
+local aTimer = mainFrame:addTimer()
+aTimer:setTime(2):start()
+aTimer:cancel()
+```
+
+# Events
+
+## onCall
+`onCall(self)`<br>
+A custom event which gets triggered as soon as the current timer has finished
+
+Here is a example on how to add a onCall event to your timer:
+
+```lua
+local basalt = require("Basalt")
+
+local mainFrame = basalt.createFrame()
+local aTimer = mainFrame:addTimer()
+
+function call()
+  basalt.debug("The timer has finished!")
+end
+aTimer:onCall(call)
+```
+
+Here is also a example how this is done with xml:
+
+```lua
+local basalt = require("Basalt")
+
+local mainFrame = basalt.createFrame()
+
+basalt.setVariable("call", function()
+  basalt.debug("The timer has finished!")
+end)
+```
+```xml
+<progressbar onDone="call" />
+```