Add obs notification script

obs-replay-notification/Beep_on_replay_buffer_save.lua

@@ -0,0 +1,29 @@
+local obs = obslua
+local ffi = require("ffi")
+local winmm = ffi.load("Winmm")
+
+-- Put a sound of your choosing next to "Beep on replay save.lua" and don't forget to match its name either in code below or rename your file.
+PROP_AUDIO_FILEPATH = script_path() .. "sound_npc_scanner_scanner_photo1.wav"
+
+ffi.cdef[[
+    bool PlaySound(const char *pszSound, void *hmod, uint32_t fdwSound);
+]]
+
+function playsound(filepath)
+    winmm.PlaySound(filepath, nil, 0x00020000)
+end
+
+function on_event(event) 
+  if event == obs.OBS_FRONTEND_EVENT_REPLAY_BUFFER_SAVED 
+    then playsound(PROP_AUDIO_FILEPATH) 
+  end 
+end
+
+function script_load(settings)
+  obs.obs_frontend_add_event_callback(on_event)
+end
+
+-- This Lua script was downloaded from https://gist.github.com/snakecase/e816384a071cec31efbb4b9e429c108d
+
+-- Credits: upgradeQ (https://gist.github.com/upgradeQ/b2412242d76790d7618d6b0996c4562f), gima (https://gitlab.com/gima/obsnotification)
+-- Thank you guys!