doc: Engine change related doc

doc/libf3d/LANGUAGE_BINDINGS.md

@@ -9,7 +9,7 @@ Here is an example showing how to use libf3d python bindings:
 ```python
 import f3d
 
-eng = f3d.Engine(f3d.Window.NATIVE)
+eng = f3d.Engine.create(False)
 eng.options.update({
   "model.scivis.array-name": "Normals",
   "model.scivis.component": 0,

doc/libf3d/OVERVIEW.md

@@ -19,7 +19,7 @@ Rendering a file and starting the interaction is very easy:
 f3d::engine::autoloadPlugins();
 
 // Create a f3d::engine
-f3d::engine eng();
+f3d::engine eng = f3d::engine::create();
 
 // Add a file into a scene
 eng.getScene().add("path/to/file.ext");
@@ -39,7 +39,7 @@ As well as loading multiple files:
 f3d::engine::autoloadPlugins();
 
 // Create a f3d::engine
-f3d::engine eng();
+f3d::engine eng = f3d::engine::create();
 
 // Load multiples geometries
 eng.getScene().add({"path/to/file.ext", "path/to/file2.ext"});
@@ -56,7 +56,7 @@ It's also possible to load a geometry from memory buffers:
 #include <f3d/scene.h>
 
 // Create a f3d::engine
-f3d::engine eng();
+f3d::engine eng = f3d::engine::create();
 
 // Create a single triangle
 f3d::mesh_t mesh = {};
@@ -105,7 +105,7 @@ Changing some options can be done this way:
 f3d::engine::autoloadPlugins();
 
 // Create a f3d::engine
-f3d::engine eng();
+f3d::engine eng = f3d::engine::create();
 
 // Recover the options and set the wanted value
 options& opt = eng.getOptions();

doc/libf3d/PLUGINS.md

@@ -69,5 +69,6 @@ F3D provides access to a VTK modules containing utilities that may be useful for
  - `vtkF3DFaceVaryingPointDispatcher`: A VTK filter that manipulates point data so that F3D can display them as face-varying data (used by `usd` plugin)
  - `vtkF3DBitonicSort`: A VTK class that perform Bitonic Sort algorithm on the GPU (used by the `splat` point sprites rendering algorithm
  - `vtkF3DImporter`: An Importer class that abstract away support for different version of VTK after some API changes.
+ - `vtkF3DGLTFImporter`: An custom glTF importer class that support armatures, usefull when creating other plugin supporting glTF extensions.
 
 For the complete documentation, please consult the [vtkext doxygen documentation.](https://f3d.app/doc/libf3d/vtkext_doxygen/).