Reverted ChangeDirectory() redesign

It returns true on success again

src/core.c

@@ -2217,12 +2217,14 @@ void ClearDirectoryFiles(void)
     dirFilesCount = 0;
 }
 
-// Change working directory
+// Change working directory, returns true on success
-void ChangeDirectory(const char *dir)
+bool ChangeDirectory(const char *dir)
 {
     bool result = CHDIR(dir);
     
     if (result != 0) TRACELOG(LOG_WARNING, "SYSTEM: Failed to change to directory: %s", dir);
+    
+    return (result == 0);
 }
 
 // Check if a file has been dropped into window

src/raylib.h

@@ -984,7 +984,7 @@ RLAPI const char *GetPrevDirectoryPath(const char *dirPath);      // Get previou
 RLAPI const char *GetWorkingDirectory(void);                      // Get current working directory (uses static string)
 RLAPI char **GetDirectoryFiles(const char *dirPath, int *count);  // Get filenames in a directory path (memory should be freed)
 RLAPI void ClearDirectoryFiles(void);                             // Clear directory files paths buffers (free memory)
-RLAPI void ChangeDirectory(const char *dir);                      // Change working directory
+RLAPI bool ChangeDirectory(const char *dir);                      // Change working directory, return true on success
 RLAPI bool IsFileDropped(void);                                   // Check if a file has been dropped into window
 RLAPI char **GetDroppedFiles(int *count);                         // Get dropped files names (memory should be freed)
 RLAPI void ClearDroppedFiles(void);                               // Clear dropped files paths buffer (free memory)