CryptoPkg: BaseCryptLib: Add unit tests (Host and Shell based)

This adds a new INF for BaseCryptLib suitable for
host based environments. It adds a host based unit test for
BaseCryptLib that can also be built as a shell based Unit Test.

In addition, this also adds a UnitTestHostCrtWrapper.c file, which provides
some of the functionality not provided by the default host based unit test
system that OpenSSL expects. This is used by UnitTestHostBaseCryptLib, a
version of the BaseCryptLib meant specifically for host based unit testing.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Xiaoyu Lu <xiaoyux.lu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Guomin Jiang <guomin.jiang@intel.com>
Signed-off-by: Matthew Carlson <matthewfcarlson@gmail.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

CryptoPkg/Test/UnitTest/Library/BaseCryptLib/RandTests.c

@@ -0,0 +1,51 @@
+/** @file
+  Application for Pseudorandom Number Generator Validation.
+
+Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "TestBaseCryptLib.h"
+
+#define  RANDOM_NUMBER_SIZE  256
+
+CONST  UINT8  SeedString[] = "This is the random seed for PRNG verification.";
+
+UINT8  PreviousRandomBuffer[RANDOM_NUMBER_SIZE] = { 0x0 };
+
+UINT8  RandomBuffer[RANDOM_NUMBER_SIZE] = { 0x0 };
+
+UNIT_TEST_STATUS
+EFIAPI
+TestVerifyPrngGeneration (
+  UNIT_TEST_CONTEXT           Context
+  )
+{
+  UINTN    Index;
+  BOOLEAN  Status;
+
+  Status = RandomSeed (SeedString, sizeof (SeedString));
+  UT_ASSERT_TRUE (Status);
+
+  for (Index = 0; Index < 10; Index ++) {
+    Status = RandomBytes (RandomBuffer, RANDOM_NUMBER_SIZE);
+    UT_ASSERT_TRUE (Status);
+
+    Status = (CompareMem (PreviousRandomBuffer, RandomBuffer, RANDOM_NUMBER_SIZE) == 0);
+    UT_ASSERT_FALSE (Status);
+
+    CopyMem (PreviousRandomBuffer, RandomBuffer, RANDOM_NUMBER_SIZE);
+  }
+
+  return UNIT_TEST_PASSED;
+}
+
+TEST_DESC mPrngTest[] = {
+    //
+    // -----Description--------------------------------Class--------------------Function----------------Pre---Post--Context
+    //
+    {"TestVerifyPrngGeneration()",       "CryptoPkg.BaseCryptLib.Prng",   TestVerifyPrngGeneration,   NULL, NULL, NULL},
+};
+
+UINTN mPrngTestNum = ARRAY_SIZE(mPrngTest);