Climbing system (#1750)

* Initial commit

* Climbing uses its own controller now

* Missed a check

* Get rid of hands check

* Cleanup

* Get rid of speciescomponent stuff

* Remove unneeded check, add separate case for moving other players.

* Add DoAfter

* IClientDraggable added to ClimbingComponent

* Added some basic integration tests. Renamed ClimbMode to Climbing.

* oops

* Minor fixes

* ffff

* Table fix

* Revamped system so its more predicted, uses proper  logic for de-climbing. Get hype!!!

* Flag check fix

* Distance check and reset numticksblocked

* get rid

Content.Client/GameObjects/Components/Movement/ClimbingComponent.cs

@@ -0,0 +1,34 @@
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Components;
+using Content.Shared.GameObjects.Components.Movement;
+using Content.Client.Interfaces.GameObjects.Components.Interaction;
+using Content.Shared.Physics;
+
+namespace Content.Client.GameObjects.Components.Movement
+{
+    [RegisterComponent]
+    public class ClimbingComponent : SharedClimbingComponent, IClientDraggable
+    {
+        public override void HandleComponentState(ComponentState curState, ComponentState nextState)
+        {
+            if (!(curState is ClimbModeComponentState climbModeState) || Body == null)
+            {
+                return;
+            }
+
+            IsClimbing = climbModeState.Climbing; 
+        }
+
+        public override bool IsClimbing { get; set; }
+
+        bool IClientDraggable.ClientCanDropOn(CanDropEventArgs eventArgs)
+        {
+            return eventArgs.Target.HasComponent<IClimbable>();
+        }
+
+        bool IClientDraggable.ClientCanDrag(CanDragEventArgs eventArgs)
+        {
+            return true;
+        }
+    }
+}