Update Physics2D Component and Body (#178)

* Update

* Add: [Get/Set]AngularDaming for standardization

* Fix: Name error

* Add: [Get/Set][AngularDamping/MomentOfInertia] in PhysicsComponent2D

* Forgot in last commit

* Add: param coordSys in [PhysicsComponent2D/RigidBody2D]::SetMassCenter

* Add: Some forgotten inline

* Fix little error

* Fix: Indentation before case

* Move and Change GetCenterOfGravity

include/Nazara/Physics2D/RigidBody2D.inl

@@ -12,6 +12,11 @@ namespace Nz
 		return GetMomentOfInertia();
 	}
 
+	inline Vector2f RigidBody2D::GetCenterOfGravity(CoordSys coordSys) const
+	{
+		return GetMassCenter(coordSys);
+	}
+
 	inline void RigidBody2D::SetAngularDamping(float angularDamping)
 	{
 		SetMomentOfInertia(angularDamping);