DebugTools: simplified renderers example code.

ResourceManager::set() can autodetect the type passed and it now has
also more convenient overload.

doc/debug-tools.dox

@@ -38,9 +38,8 @@ DebugTools::ResourceManager manager;
 SceneGraph::DrawableGroup3D debugDrawables;
 
 // Create renderer options which will be referenced later by "my" resource key
-DebugTools::ResourceManager::instance()->set<DebugTools::ObjectRendererOptions>("my",
-    (new DebugTools::ObjectRendererOptions())->setSize(0.3f),
-    ResourceDataState::Final, ResourcePolicy::Persistent);
+DebugTools::ResourceManager::instance()->set("my",
+    (new DebugTools::ObjectRendererOptions())->setSize(0.3f));
 
 // Create debug renderer for given object, use "my" options for it. The
 // renderer is automatically added to the object features and also to

src/DebugTools/ObjectRenderer.h

@@ -61,9 +61,8 @@ Visualizes object position, rotation and scale using colored axes. See
 Example code:
 @code
 // Create some options
-DebugTools::ResourceManager::instance()->set<DebugTools::ObjectRendererOptions>("my",
-    (new DebugTools::ObjectRendererOptions())->setSize(0.3f),
-    ResourceDataState::Final, ResourcePolicy::Persistent);
+DebugTools::ResourceManager::instance()->set("my",
+    (new DebugTools::ObjectRendererOptions())->setSize(0.3f));
 
 // Create debug renderer for given object, use "my" options for it
 Object3D* object;

src/DebugTools/ShapeRenderer.h

@@ -72,9 +72,8 @@ Visualizes collision shape. See @ref debug-tools-renderers for more information.
 Example code:
 @code
 // Create some options
-DebugTools::ResourceManager::instance()->set<DebugTools::ShapeRendererOptions>("red",
-    (new DebugTools::ShapeRendererOptions())->setColor({1.0f, 0.0f, 0.0f}),
-    ResourceDataState::Final, ResourcePolicy::Persistent);
+DebugTools::ResourceManager::instance()->set("red",
+    (new DebugTools::ShapeRendererOptions())->setColor({1.0f, 0.0f, 0.0f}));
 
 // Create debug renderer for given shape, use "red" options for it
 Physics::ObjectShape2D* shape;