add wolfcrypt_test() to unit_test(); remove call to HashTest() and delete

  tests/hash.c (entire file duplicates code in wolfcrypt/test/test.c, originally
  ctaocrypt/test/test.c).

Author: douzzer

CMakeLists.txt

@@ -2538,7 +2538,6 @@ if(WOLFSSL_EXAMPLES)
         tests/api/test_dtls.c
         tests/api/test_ocsp.c
         tests/api/test_evp.c
-        tests/hash.c
         tests/srp.c
         tests/suites.c
         tests/w64wrapper.c
@@ -2547,7 +2546,8 @@ if(WOLFSSL_EXAMPLES)
         tests/utils.c
         testsuite/utils.c
         examples/server/server.c
-        examples/client/client.c)
+        examples/client/client.c
+        wolfcrypt/test/test.c)
     target_include_directories(unit_test PRIVATE
         ${CMAKE_CURRENT_BINARY_DIR})
     target_compile_options(unit_test PUBLIC "-DNO_MAIN_DRIVER")