[Bug Fix] fix win examples build error (#855)

* Update CMakeLists.txt

* Update infer_rkyolo.cc

Author: DefTruth

examples/CMakeLists.txt

@@ -51,6 +51,11 @@ function(add_fastdeploy_executable FIELD CC_FILE)
     if(TARGET gflags)
       if(UNIX AND (NOT APPLE) AND (NOT ANDROID))
         target_link_libraries(${TEMP_TARGET_NAME} PRIVATE gflags pthread)
+      elseif(WIN32)
+        target_link_libraries(${TEMP_TARGET_NAME} PRIVATE gflags)
+        if (HAVE_SHLWAPI)
+          target_link_libraries(${TEMP_TARGET_NAME} PRIVATE shlwapi.lib)
+        endif()  
       else()
         target_link_libraries(${TEMP_TARGET_NAME} PRIVATE gflags)
       endif()

examples/vision/detection/rkyolo/cpp/infer_rkyolo.cc

@@ -14,8 +14,6 @@
 #include "fastdeploy/vision.h"
 
 void RKNPU2Infer(const std::string& model_file, const std::string& image_file) {
-  struct timeval start_time, stop_time;
-
   auto option = fastdeploy::RuntimeOption();
   option.UseRKNPU2();