moved file sinks sinks folder

example/bench.cpp

@@ -7,9 +7,9 @@
 // bench.cpp : spdlog benchmarks
 //
 #include "spdlog/async.h"
-#include "spdlog/sinks/file/simple_file_sink.h"
-#include "spdlog/sinks/file/daily_file_sink.h"
-#include "spdlog/sinks/file/rotating_file_sink.h"
+#include "spdlog/sinks/simple_file_sink.h"
+#include "spdlog/sinks/daily_file_sink.h"
+#include "spdlog/sinks/rotating_file_sink.h"
 #include "spdlog/sinks/null_sink.h"
 #include "spdlog/spdlog.h"
 

example/example.cpp

@@ -10,9 +10,9 @@
 #define SPDLOG_TRACE_ON
 #define SPDLOG_DEBUG_ON
 
-#include "spdlog/sinks/file/simple_file_sink.h"
-#include "spdlog/sinks/file/daily_file_sink.h"
-#include "spdlog/sinks/file/rotating_file_sink.h"
+#include "spdlog/sinks/simple_file_sink.h"
+#include "spdlog/sinks/daily_file_sink.h"
+#include "spdlog/sinks/rotating_file_sink.h"
 #include "spdlog/sinks/stdout_color_sinks.h"
 
 #include <iostream>