Create verify_peer_options when creating ssl credentials in order to expose a verification callback option.

These options are not yet exposed to languages outside of core.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ca9a1eb..e95bbca 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -308,6 +308,9 @@
 if(_gRPC_PLATFORM_LINUX)
 add_dependencies(buildtests_c handshake_server_with_readahead_handshaker)
 endif()
+if(_gRPC_PLATFORM_LINUX)
+add_dependencies(buildtests_c handshake_verify_peer_options)
+endif()
 add_dependencies(buildtests_c histogram_test)
 add_dependencies(buildtests_c hpack_parser_test)
 add_dependencies(buildtests_c hpack_table_test)
@@ -7383,6 +7386,37 @@
 endif()
 endif (gRPC_BUILD_TESTS)
 if (gRPC_BUILD_TESTS)
+if(_gRPC_PLATFORM_LINUX)
+
+add_executable(handshake_verify_peer_options
+  test/core/handshake/verify_peer_options.cc
+)
+
+
+target_include_directories(handshake_verify_peer_options
+  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
+  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include
+  PRIVATE ${_gRPC_SSL_INCLUDE_DIR}
+  PRIVATE ${_gRPC_PROTOBUF_INCLUDE_DIR}
+  PRIVATE ${_gRPC_ZLIB_INCLUDE_DIR}
+  PRIVATE ${_gRPC_BENCHMARK_INCLUDE_DIR}
+  PRIVATE ${_gRPC_CARES_INCLUDE_DIR}
+  PRIVATE ${_gRPC_GFLAGS_INCLUDE_DIR}
+  PRIVATE ${_gRPC_ADDRESS_SORTING_INCLUDE_DIR}
+)
+
+target_link_libraries(handshake_verify_peer_options
+  ${_gRPC_SSL_LIBRARIES}
+  ${_gRPC_ALLTARGETS_LIBRARIES}
+  grpc_test_util
+  grpc
+  gpr_test_util
+  gpr
+)
+
+endif()
+endif (gRPC_BUILD_TESTS)
+if (gRPC_BUILD_TESTS)
 
 add_executable(histogram_test
   test/core/util/histogram_test.cc