docs: add plugin setup guide

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

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "RE/B/BSTEvent.h"
+
+namespace RE
+{
+	class ShowingDialogueSpeechChallengeAnim :
+		public BSTValueEvent<bool>
+	{
+	public:
+	};
+	static_assert(sizeof(ShowingDialogueSpeechChallengeAnim) == 0x2);
+}