Got a bunch of examples working

examples/vbox/main.go

@@ -0,0 +1,39 @@
+package main
+
+import "git.tebibyte.media/sashakoshka/tomo"
+import "git.tebibyte.media/sashakoshka/tomo/elements"
+import "git.tebibyte.media/sashakoshka/tomo/elements/testing"
+import "git.tebibyte.media/sashakoshka/tomo/elements/containers"
+import _ "git.tebibyte.media/sashakoshka/tomo/backends/all"
+
+func main () {
+	tomo.Run(run)
+}
+
+func run () {
+	window, _ := tomo.NewWindow(tomo.Bounds(0, 0, 128, 128))
+	window.SetTitle("vertical stack")
+
+	container := containers.NewVBox(true, true)
+
+	label    := elements.NewLabel("it is a label hehe", true)
+	button   := elements.NewButton("drawing pad")
+	okButton := elements.NewButton("OK")
+	button.OnClick (func () {
+		container.DisownAll()
+		container.Adopt(elements.NewLabel("Draw here:", false), false)
+		container.Adopt(testing.NewMouse(), true)
+		container.Adopt(okButton, false)
+		okButton.Focus()
+	})
+	okButton.OnClick(tomo.Stop)
+	
+	container.Adopt(label, true)
+	container.Adopt(button, false)
+	container.Adopt(okButton, false)
+	okButton.Focus()
+	
+	window.Adopt(container)
+	window.OnClose(tomo.Stop)
+	window.Show()
+}