Added std::hash for String, made use of unordered_map

Former-commit-id: 20f3d12bc3222873706949f0a7d0a131e237a247

src/Nazara/Utility/Animation.cpp

@@ -6,13 +6,13 @@
 #include <Nazara/Core/Error.hpp>
 #include <Nazara/Utility/Config.hpp>
 #include <Nazara/Utility/Skeleton.hpp>
-#include <map>
 #include <vector>
+#include <unordered_map>
 #include <Nazara/Utility/Debug.hpp>
 
 struct NzAnimationImpl
 {
-	std::map<NzString, unsigned int> sequenceMap;
+	std::unordered_map<NzString, unsigned int> sequenceMap;
 	std::vector<NzSequence> sequences;
 	std::vector<NzSequenceJoint> sequenceJoints; // Uniquement pour les animations squelettiques
 	nzAnimationType type;

src/Nazara/Utility/Mesh.cpp

@@ -18,9 +18,9 @@
 #include <Nazara/Utility/StaticMesh.hpp>
 #include <Nazara/Utility/SubMesh.hpp>
 #include <cstring>
-#include <map>
-#include <memory>
 #include <limits>
+#include <memory>
+#include <unordered_map>
 #include <Nazara/Utility/Debug.hpp>
 
 NzMeshParams::NzMeshParams()
@@ -48,7 +48,7 @@ bool NzMeshParams::IsValid() const
 
 struct NzMeshImpl
 {
-	std::map<NzString, unsigned int> subMeshMap;
+	std::unordered_map<NzString, unsigned int> subMeshMap;
 	std::vector<NzString> materials;
 	std::vector<NzSubMesh*> subMeshes;
 	nzAnimationType animationType;

src/Nazara/Utility/Skeleton.cpp

@@ -3,12 +3,12 @@
 // For conditions of distribution and use, see copyright notice in Config.hpp
 
 #include <Nazara/Utility/Skeleton.hpp>
-#include <map>
+#include <unordered_map>
 #include <Nazara/Utility/Debug.hpp>
 
 struct NzSkeletonImpl
 {
-	std::map<NzString, unsigned int> jointMap; ///FIXME: unordered_map
+	std::unordered_map<NzString, unsigned int> jointMap;
 	std::vector<NzJoint> joints;
 	NzBoxf aabb;
 	bool aabbUpdated = false;