Added Label:SetAlignment()

also fixed stuff
Changed how meshes do position/orientation
Fixed not sending the window title to the front

also fixed the title not drawing
Fixed buttons hovering when they shouldn't

also added setting the mouse cursor icon.
Panel input events have the panel as the sender.

Also made a little dialogue for pressing exit.
Added better mouse resizing to window

Also added window.MaximumSize/MinimumSize
Setting the mouse cursor for resizing the window