feat: add initial People Playground mod development kit

extracted_wiki_content/internalReference/simplelightningemitterbehaviour.txt

@@ -0,0 +1,17 @@
+URL: https://wiki.studiominus.nl/internalReference/SimpleLightningEmitterBehaviour.html
+Title: People Playground Modding - SimpleLightningEmitterBehaviour
+==================================================
+
+public class SimpleLightningEmitterBehaviour
+Inherits MonoBehaviour
+Singleton utility class that can generate cheap lightning bolts
+Fields
+public static SimpleLightningEmitterBehaviour Instance
+The main instance of the emitter
+
+public GameObject PoolableLightningPrefab
+No description provided
+
+Methods
+public void Emit(Vector2 origin, Vector2 direction, float maxSearchRange, float width, System.Action<PhysicalBehaviour, Vector2> onHit, Color color, LayerMask layers,         in float attractionInfluence = 3, in int maxIterations = 128, in float maxStep = 0.07f, in float randomness = 0.05f, PhysicalBehaviour[] exclude = null)
+Emit a lightning bolt from a point into a direction.