CryptoPkg: Add Null instance of the BaseCryptLib class

https://bugzilla.tianocore.org/show_bug.cgi?id=2257

Add a Null instance of the BaseCryptLib class.  This lib instance
can be used as a template for new implementations of the BaseCryptLib
class and can also be used to reduce CI build times for build
checks that depend on the BaseCryptLib class.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Xiaoyu Lu <xiaoyux.lu@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>

CryptoPkg/Library/BaseCryptLibNull/Pk/CryptPkcs1OaepNull.c

@@ -0,0 +1,51 @@
+/** @file
+  This file contains UEFI wrapper functions for RSA PKCS1v2 OAEP encryption routines.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+  Copyright (C) 2016 Microsoft Corporation. All Rights Reserved.
+  Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+
+**/
+
+#include "InternalCryptLib.h"
+
+/**
+  Encrypts a blob using PKCS1v2 (RSAES-OAEP) schema. On success, will return the
+  encrypted message in a newly allocated buffer.
+
+  Return FALSE to indicate this interface is not supported.
+
+  @param[in]  PublicKey           A pointer to the DER-encoded X509 certificate that
+                                  will be used to encrypt the data.
+  @param[in]  PublicKeySize       Size of the X509 cert buffer.
+  @param[in]  InData              Data to be encrypted.
+  @param[in]  InDataSize          Size of the data buffer.
+  @param[in]  PrngSeed            [Optional] If provided, a pointer to a random seed buffer
+                                  to be used when initializing the PRNG. NULL otherwise.
+  @param[in]  PrngSeedSize        [Optional] If provided, size of the random seed buffer.
+                                  0 otherwise.
+  @param[out] EncryptedData       Pointer to an allocated buffer containing the encrypted
+                                  message.
+  @param[out] EncryptedDataSize   Size of the encrypted message buffer.
+
+  @retval FALSE                   This interface is not supported.
+
+**/
+BOOLEAN
+EFIAPI
+Pkcs1v2Encrypt (
+  IN   CONST UINT8  *PublicKey,
+  IN   UINTN        PublicKeySize,
+  IN   UINT8        *InData,
+  IN   UINTN        InDataSize,
+  IN   CONST UINT8  *PrngSeed,  OPTIONAL
+  IN   UINTN        PrngSeedSize,  OPTIONAL
+  OUT  UINT8        **EncryptedData,
+  OUT  UINTN        *EncryptedDataSize
+  )
+{
+  ASSERT (FALSE);
+  return FALSE;
+}
+