Constraint 2D (#147)

* Rename all Constraint by [name]Constraint3D

* Create Refs and Libraries for Constraint2D

* Remove ref to PhysWorld in Constraints ctors

* Update Constraint2d ctor to have RigiBodies first

* Add New static function for all constraints and fix an oopsie

* Add Contraint Library and remove all library useless aliases

* Add ConstraintComponent2D

* remove useless definition of Constraint2D library

* Fix : getting the world of the constraint before having created it

* Make the GetStaticBody function return a ref

* Remove : Useless AddJoint Fonction and Update CreateJoint function

* Update PhysicsSystem3D because GetStaticBody return now a ref

* Oops

* Having done something with the 3D and i was needing 2D

* Add ConstraintComponent as friend of Collision and PhysicsComponent

* Update all the Get[Static/Rigid]Body function so they return a pointer

* fix the bugs caused by the commit before

* update : CreateConstraint lambda for the nullptr case

* remove the useless  use of const pointer

* Update : CreateConstraint function

* Update ChangeLog.md

SDK/include/NDK/Components/ConstraintComponent2D.hpp

@@ -0,0 +1,34 @@
+#pragma once
+
+#ifndef NDK_COMPONENTS_CONSTRAINTCOMPONENT2D_HPP
+#define NDK_COMPONENTS_CONSTRAINTCOMPONENT2D_HPP
+
+#include <NDK/Component.hpp>
+#include <Nazara/Physics2D/Constraint2D.hpp>
+#include <Nazara/Math/Vector3.hpp>
+#include <vector>
+#include <memory>
+
+namespace Ndk
+{
+	class NDK_API ConstraintComponent2D : public Component<ConstraintComponent2D>
+	{
+		public:
+			ConstraintComponent2D() = default;
+			ConstraintComponent2D(const ConstraintComponent2D& joint) = default;
+			ConstraintComponent2D(ConstraintComponent2D&& joint) = default;
+
+			template<typename T, typename... Args> inline Nz::ObjectRef<T> CreateConstraint(const Ndk::EntityHandle first, const Ndk::EntityHandle second, Args&&... args);
+		
+			static ComponentIndex componentIndex;
+
+		private:
+
+			std::vector<Nz::Constraint2DRef> m_constraints;
+	};
+
+}
+
+#include <NDK/Components/ConstraintComponent2D.inl>
+
+#endif// NDK_COMPONENTS_CONSTRAINTCOMPONENT2D_HPP