WL#15135 patch #1: NodeCertificate classes

Part of WL#15135 Certificate Architecture

This patch introduces a set of C++ classes to implement the creation of
private keys, PKCS#10 signing requests, and X.509 certificates for NDB
cluster.

The TlsSearchPath class provides searching for files over a delimited
list of directories.

The PrivateKey and Certificate classes provide simple wrappers over the
OpenSSL routines to create, free, save, and open keys and certificates.

Classes PendingPrivateKey and PendingCertificate implement file naming
conventions and life cycle for pending key pairs; ActivePrivateKey
and ActiveCertificate implement them for active key pairs. Class
SigningRequest provides the naming conventions and life cycle for
PKCS#10 CSRs.

Class NodeCertificate is the primary in-memory representation of a
node's TLS credentials.

A unit test, NodeCertificate-t, is intended to thoroughly test the
whole suite of classes. It should be possible to run this test under
valgrind with no reported leaks.

Change-Id: I76bf719375ab2a9b6a97245e326158a49dde28c2

Author: jdduncan

storage/ndb/include/util/File.hpp

@@ -28,6 +28,16 @@
 #include <ndb_global.h>
 #include <time.h>
 
+#ifdef _WIN32
+#include <io.h>
+#define S_IRUSR _S_IREAD
+#define S_IRGRP _S_IREAD
+#define S_IROTH _S_IREAD
+#define S_IWUSR _S_IWRITE
+#define S_IWGRP _S_IWRITE
+#define S_IWOTH _S_IWRITE
+#endif
+
 /**
  * This class provides a file abstraction . It has operations
  * to create, read, write and delete a file.