[orx-camera] Add OrbitalManual, add instant parameter to OrbitalCamera functions

orx-camera/src/jvmDemo/kotlin/DemoOrbitalManual01.kt

@@ -0,0 +1,49 @@
+import org.openrndr.WindowMultisample
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.DrawPrimitive
+import org.openrndr.extra.camera.OrbitalManual
+import org.openrndr.extra.meshgenerators.boxMesh
+import org.openrndr.extra.meshgenerators.sphereMesh
+import org.openrndr.math.Vector3
+
+/**
+ * Demonstrate the use of an orbital camera to render a sphere and a cube in 3D space as wireframe meshes, positioned
+ * and rendered independently using the camera's isolated drawing state. A stationary pink circle is also drawn in the
+ * center of the scene.
+ *
+ * Functionality:
+ * - Initializes a sphere mesh and a cube mesh with predefined dimensions.
+ * - Spawns an orbital camera, initially positioned away from the origin, to allow for focused rendering.
+ * - Renders 3D wireframe shapes (sphere and cube) using the camera's isolated perspective.
+ * - Draws a static 2D pink circle overlay at the window center.
+ */
+fun main() = application {
+    configure {
+        width = 720
+        height = 720
+        multisample = WindowMultisample.SampleCount(8)
+    }
+
+    program {
+        val sphere = sphereMesh(radius = 25.0)
+        val cube = boxMesh(20.0, 20.0, 5.0, 5, 5, 2)
+
+        val camera = OrbitalManual()
+        camera.camera.rotateTo(Vector3(0.0, 0.0, 30.0), instant = true)
+        extend {
+            camera.isolated {
+                drawer.fill = ColorRGBa.WHITE
+                drawer.vertexBuffer(sphere, DrawPrimitive.LINE_LOOP)
+            }
+
+            drawer.fill = ColorRGBa.PINK
+            drawer.circle(drawer.bounds.center, 250.0)
+
+            camera.isolated {
+                drawer.fill = ColorRGBa.WHITE
+                drawer.vertexBuffer(cube, DrawPrimitive.LINE_LOOP)
+            }
+        }
+    }
+}