bpo-36511: Add buildbot scripts and fix tests for Windows ARM32 buildbot (GH-13454)

diff --git a/Lib/test/test_math.py b/Lib/test/test_math.py
index fa69044..362d093 100644
--- a/Lib/test/test_math.py
+++ b/Lib/test/test_math.py
@@ -468,6 +468,8 @@
             self.assertRaises(ValueError, math.cos, NINF)
         self.assertTrue(math.isnan(math.cos(NAN)))
 
+    @unittest.skipIf(sys.platform == 'win32' and platform.machine() in ('ARM', 'ARM64'),
+                    "Windows UCRT is off by 2 ULP this test requires accuracy within 1 ULP")
     def testCosh(self):
         self.assertRaises(TypeError, math.cosh)
         self.ftest('cosh(0)', math.cosh(0), 1)