docs: add plugin setup guide

plugin/lib/commonlibf4/include/RE/R/RadioManager.h

@@ -0,0 +1,28 @@
+#pragma once
+
+namespace RE
+{
+	namespace RadioManager
+	{
+		inline bool QPlayerRadioEnabled()
+		{
+			using func_t = decltype(&RadioManager::QPlayerRadioEnabled);
+			static REL::Relocation<func_t> func{ ID::RadioManager::QPlayerRadioEnabled };
+			return func();
+		}
+
+		inline float QCurrentPlayerFreq()
+		{
+			using func_t = decltype(&RadioManager::QCurrentPlayerFreq);
+			static REL::Relocation<func_t> func{ ID::RadioManager::QCurrentPlayerFreq };
+			return func();
+		}
+
+		inline void EnablePlayerRadio(bool a_enable, bool a_playOnOffSound)
+		{
+			using func_t = decltype(&RadioManager::EnablePlayerRadio);
+			static REL::Relocation<func_t> func{ ID::RadioManager::EnablePlayerRadio };
+			return func(a_enable, a_playOnOffSound);
+		}
+	}
+}