[Contribution] Ogre importer: Load physics bodies from blender

[RiccardoBlb]

Rigidbodies are loaded by the importer, the resulting node of assetManager.loadModel is a node that already contains spatials with rbs on them. This is where the issue comes from.

[RiccardoBlb]

I added a toggable support to vhacd.
To use it you need to include the jme3-bullet-vhacd library in your project and enable it with

((OgreSceneKey)key).useVHACD(VHACDCollisionShapeFactory)

or

((OgreSceneKey)key).useVHACD(true)

With vhacd enabled, the dynamic rigidbodies with collisions shape setted to Triangle Mesh in blender will be loaded with vhacd instead of GImpact.

@RiccardoBlb

I’ve also made a fix for this, now rigidbodies loaded with this importer allow spatials to be moved and rotated with setLocal* methods, as long they aren’t attached to any PhysicsSpace.

This is now disabled by default, and can be enabled with

((OgreSceneKey)key).usePhysics(new OgrePhysicsBullet().useEnhancedRigidbodies(true));