[C++]: Helper function to produce the needed number of closing braces.

Author: didenko

sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/cpp/CppUtil.java

@@ -139,4 +139,9 @@ public static String formatByteOrderEncoding(final ByteOrder byteOrder, final Pr
                 return "";
         }
     }
+
+    public static String closingBraces(final int count)
+    {
+        return new String(new char[count]).replace("\0", "};\n");
+    }
 }