Add weightlessness status effect. (#2384)

* Add weightlessness status effect.

* remove system, add new action

* Update Content.Shared/GameObjects/Components/Mobs/SharedWeightlessStatusComponent.cs

Co-authored-by: Paul Ritter <ritter.paul1@googlemail.com>

* Update Content.Shared/GameObjects/Components/Mobs/SharedWeightlessStatusComponent.cs

Co-authored-by: Paul Ritter <ritter.paul1@googlemail.com>

* Update Content.Shared/GameObjects/Components/Movement/MovementIgnoreGravityComponent.cs

Co-authored-by: Paul Ritter <ritter.paul1@googlemail.com>

* Update Content.Shared/GameObjects/Components/Movement/MovementIgnoreGravityComponent.cs

Co-authored-by: Paul Ritter <ritter.paul1@googlemail.com>

* fix paul's typo. does not run.

* add client side component

* move logic to eventbus

* remove client/server components and clean up code

* remove useless component, revert human.yml changes.

Co-authored-by: scuffedjays <yetanotherscuffed@gmail.com>
Co-authored-by: Paul Ritter <ritter.paul1@googlemail.com>

Content.Shared/GameObjects/Components/Mobs/SharedStatusEffectsComponent.cs

@@ -68,6 +68,7 @@ namespace Content.Shared.GameObjects.Components.Mobs
         Buckled,
         Piloting,
         Pulling,
-        Pulled
+        Pulled,
+        Weightless
     }
 }