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/objects/VisualObject/setBorder.md

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+## setBorder
+
+### Description
+
+Sets the border of that objects, if false the border will be removed
+
+Default: false
+
+### Parameters
+
+1. `number|color` Border color
+2. `string` optional - sides. If you don't set sides, all 4 sides will have a border
+
+### Returns
+
+1. `object` The object in use
+
+### Usage
+
+* Sets the border to green and shows it:
+
+```lua
+local mainFrame = basalt.createFrame()
+local subFrame = mainFrame:addMovableFrame()
+        :setSize(18,6)
+        :setBorder(colors.green, "left", "right", "bottom")
+```
+
+```xml
+<movableFrame width="18" height="6" borderColor="green" />
+```