[orx-shapes] Refactor package layout

orx-shapes/src/jvmDemo/kotlin/primitives/DemoRegularPolygon.kt

@@ -0,0 +1,32 @@
+package primitives
+
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.isolated
+import org.openrndr.extra.shapes.primitives.regularPolygon
+import org.openrndr.math.map
+import kotlin.math.cos
+
+fun main() = application {
+    program {
+        extend {
+            drawer.fill = ColorRGBa.PINK
+            drawer.stroke = ColorRGBa.WHITE
+
+            for (sides in 0 until 8) {
+                val radius0 = cos(seconds + sides) * 20.0 + 40.0
+                val star = regularPolygon(sides + 3, radius = radius0)
+
+                drawer.isolated {
+                    translate(
+                            (sides % 4.0).map(0.0, 3.0,
+                                    width * 0.2, width * 0.8),
+                            (sides / 4).toDouble().map(0.0, 1.0,
+                                    height * 0.3, height * 0.7))
+                    rotate(seconds * 45.0)
+                    contour(star)
+                }
+            }
+        }
+    }
+}