Add missing #pragma once

engine/core/filesystem/BinaryReader.h

@@ -24,6 +24,8 @@ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 OTHER DEALINGS IN THE SOFTWARE.
 */
 
+#pragma once
+
 #include "Types.h"
 
 namespace crown

engine/core/filesystem/BinaryWriter.h

@@ -24,6 +24,8 @@ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 OTHER DEALINGS IN THE SOFTWARE.
 */
 
+#pragma once
+
 #include "Types.h"
 
 namespace crown

engine/core/filesystem/TextReader.h

@@ -24,6 +24,8 @@ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 OTHER DEALINGS IN THE SOFTWARE.
 */
 
+#pragma once
+
 #include "Types.h"
 
 namespace crown

engine/core/filesystem/TextWriter.h

@@ -24,6 +24,8 @@ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 OTHER DEALINGS IN THE SOFTWARE.
 */
 
+#pragma once
+
 namespace crown
 {