Added basic jump mechanic for slimes and prevention from going over the border, added tile hiding to increase performance

Assets/Prefabs/slime.prefab

@@ -116,10 +116,10 @@ Rigidbody:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 4392939395195199552}
-  serializedVersion: 4
+  serializedVersion: 5
   m_Mass: 1
-  m_Drag: 0
-  m_AngularDrag: 0.05
+  m_LinearDamping: 0
+  m_AngularDamping: 0.05
   m_CenterOfMass: {x: 0, y: 0, z: 0}
   m_InertiaTensor: {x: 1, y: 1, z: 1}
   m_InertiaRotation: {x: 0, y: 0, z: 0, w: 1}
@@ -134,7 +134,7 @@ Rigidbody:
   m_UseGravity: 1
   m_IsKinematic: 0
   m_Interpolate: 0
-  m_Constraints: 122
+  m_Constraints: 112
   m_CollisionDetection: 0
 --- !u!114 &-9044075018784067105
 MonoBehaviour:
@@ -150,3 +150,4 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   clip: {fileID: 0}
   keepAlive: 0
+  slimeType: 0