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/Button.md

@@ -0,0 +1,91 @@
+Buttons are objects, which execute something by clicking on them.<br>
+
+Remember button also inherits from [Object](objects/Object.md)
+
+## setText
+Sets the displayed button text
+#### Parameters: 
+1. `string` the text the button should show
+
+#### Returns:
+1. `object` The object in use
+
+#### Usage:
+* Creates a button with "Click me!" as text.
+```lua
+local mainFrame = basalt.createFrame()
+local button = mainFrame:addButton():setText("Click me!")
+```
+```xml
+<button text="Click me!" />
+```
+
+## setHorizontalAlign
+Sets the horizontal align of the button text
+
+#### Parameters: 
+1. `string` the position as string ("left", "center", "right") - default is center.
+
+#### Returns:
+1. `object` The object in use
+
+#### Usage:
+* Sets the button's horizontal text align to right. 
+```lua
+local mainFrame = basalt.createFrame()
+local button = mainFrame:addButton()
+       :setText("Click me!")
+       :setHorizontalAlign("right")
+```
+```xml
+<button text="Click me!" horizontalAlign="right" />
+```
+
+## setVerticalAlign
+Sets the vertical align of the button text
+
+#### Parameters: 
+1. `string` the position as string ("top", "center", "bottom") - default is center.
+
+#### Returns:
+1. `object` The object in use
+
+#### Usage:
+* Sets the button's horizontal text align to right and the vertical text align to bottom. 
+```lua
+local mainFrame = basalt.createFrame()
+local button = mainFrame:addButton()
+       :setText("Click me!")
+       :setHorizontalAlign("right")
+       :setVerticalAlign("bottom")
+```
+```xml
+<button text="Click me!" horizontalAlign="right" verticalAlign="bottom" />
+```
+
+# Example
+This is a example on how you would create a fully working button:
+```lua
+local mainFrame = basalt.createFrame()
+local aButton = mainFrame:addButton():setText("Click")
+
+aButton:onClick(function(self,event,button,x,y)
+  if(event=="mouse_click")and(button==1)then
+    basalt.debug("Left mousebutton got clicked!")
+  end
+end)
+```
+
+and this would be the xml way to do it:
+```lua
+local mainFrame = basalt.createFrame():addLayout("example.xml")
+
+basalt.setVariable("buttonClick", function(self,event,button,x,y)
+  if(event=="mouse_click")and(button==1)then
+    basalt.debug("Left mousebutton got clicked!")
+  end
+end)
+```
+```xml
+<button onClick="buttonClick" text="Click" />
+```