Normalize line endings

This commit contains only the result of `git add --renormalize .`

`git show --ignore-space-change` can verify that this commit only
changes whitespace.

PortabilityLayer/XModemCRC.h

@@ -1,11 +1,11 @@
-#pragma once
-
-#include <stdint.h>
-#include <stddef.h>
-
-#include "DataTypes.h"
-
-namespace PortabilityLayer
-{
-	uint16_t XModemCRC(const void *bytes, size_t size, uint16_t initialValue);
-}
+#pragma once
+
+#include <stdint.h>
+#include <stddef.h>
+
+#include "DataTypes.h"
+
+namespace PortabilityLayer
+{
+	uint16_t XModemCRC(const void *bytes, size_t size, uint16_t initialValue);
+}