Implement handling for third-person pointer lock release

src/runtime-three/navigation-controller.ts

@@ -166,6 +166,7 @@ export interface RuntimeControllerContext {
     input: RuntimeTargetLookInput
   ): RuntimeTargetLookInputResult;
   handleRuntimeTargetLookBoundaryReached?(): boolean;
+  handleThirdPersonPointerLockReleased?(): boolean;
   isCameraDrivenExternally(): boolean;
   getCameraYawRadians(): number;
   isInputSuspended(): boolean;