obs-scripting: Search native libraries in Lua script's location

deps/obs-scripting/obs-scripting-lua.c

@@ -52,6 +52,7 @@ static const char *get_script_path_func = "\
 function script_path()\n\
 	 return \"%s\"\n\
 end\n\
+package.cpath = package.cpath .. \";\" .. script_path() .. \"/?." SO_EXT "\"\n\
 package.path = package.path .. \";\" .. script_path() .. \"/?.lua\"\n";
 
 static char *startup_script = NULL;