Jetpacks (#9023)

* Movement acceleration

* tweaks

* Weightless refactor coz fuck it

* CCVars

* weightless movement tweaks

* Some cleanup while I'm here

* dorkpacks

* thanks fork

* fixes

* zoomies

* toggles

* hmm

* yamls

* b

* so true

* Effects refactor

* namespace

* review

Content.Shared/Spawners/Components/TimedDespawnComponent.cs

@@ -0,0 +1,15 @@
+namespace Content.Shared.Spawners.Components;
+
+/// <summary>
+/// Put this component on something you would like to despawn after a certain amount of time
+/// </summary>
+[RegisterComponent]
+public sealed class TimedDespawnComponent : Component
+{
+    /// <summary>
+    /// How long the entity will exist before despawning
+    /// </summary>
+    [ViewVariables]
+    [DataField("lifetime")]
+    public float Lifetime = 5f;
+}