docs: add plugin setup guide

plugin/lib/commonlibf4/include/RE/S/SCENE_ACTOR_FLAG.h

@@ -0,0 +1,13 @@
+#pragma once
+
+namespace RE
+{
+	enum class SCENE_ACTOR_FLAG : std::uint32_t
+	{
+		kNoPlayerActivation = 0x0,
+		kOption = 0x1,
+		kRunOnlyScenePackages = 0x2,
+		kNoCommandState = 0x3,
+		kCount = 0x4
+	};
+}