added TestLogo

src/logo/TestLogo.scala

@@ -0,0 +1,19 @@
+package logo
+
+import hevs.graphics.TurtleGraphics
+
+object TestLogo {
+  def main(args: Array[String]): Unit = {
+    val turtle: TurtleGraphics = new TurtleGraphics(600, 600)
+    turtle.penUp()
+    turtle.jump(300, 300)
+    turtle.setAngle(0)
+    turtle.forward(150 * math.sqrt(3) / 2)
+    turtle.turn(150)
+    turtle.penDown()
+    for (_: Int <- 0 until 3) {
+      turtle.forward(300)
+      turtle.turn(120)
+    }
+  }
+}