THRIFT-4081: appveyor retooling - added mingw64 build as a second job to the CI build process

This closes #1205
diff --git a/build/appveyor/MSVC-appveyor-test.bat b/build/appveyor/MSVC-appveyor-test.bat
new file mode 100644
index 0000000..1737085
--- /dev/null
+++ b/build/appveyor/MSVC-appveyor-test.bat
@@ -0,0 +1,29 @@
+::
+:: Licensed under the Apache License, Version 2.0 (the "License");
+:: you may not use this file except in compliance with the License.
+:: You may obtain a copy of the License at
+::
+::     http://www.apache.org/licenses/LICENSE-2.0
+::
+:: Unless required by applicable law or agreed to in writing, software
+:: distributed under the License is distributed on an "AS IS" BASIS,
+:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+:: See the License for the specific language governing permissions and
+:: limitations under the License.
+::
+
+@ECHO OFF
+SETLOCAL EnableDelayedExpansion
+CD build\appveyor              || EXIT /B
+CALL cl_banner_test.bat        || EXIT /B
+CALL cl_setenv.bat             || EXIT /B
+CD "%BUILDDIR%"                || EXIT /B
+
+:: Add directories to the path to find DLLs of third party libraries so tests run
+SET PATH=%BOOST_LIBRARYDIR%;%OPENSSL_ROOT%\bin;%WIN3P%\zlib-inst\bin;%PATH%
+
+:: The stress test is long running on appveyor (2+ minutes)
+:: and not terribly useful with one core, so we disable it
+SET DISABLED_TESTS=StressTestNonBlocking
+
+ctest -C %CONFIGURATION% --timeout 600 -VV -E "(%DISABLED_TESTS%)" || EXIT /B