commit level_2 + gizmo line for stair
Merge branch 'master' of https://github.com/3a-arthurkevin/3ADJV_TORRENTE_WATHTHUHEWA_Hinder_-_Flee

Conflicts:
	Rendu/RC/Assets/Prefabs/prefabsV2/StairCircleDown.prefab
	Rendu/RC/Assets/Prefabs/prefabsV2/StairCircleUp.prefab
	Rendu/RC/Assets/Scenes/Level_2.unity
	Rendu/RC/Assets/Scenes/Level_2/NavMesh.asset
	Rendu/RC/Assets/Scripts/Decors/Stair/SurvivorManagerForStairScript.cs
update stair