Wire TLS keys in Python for cross-tests

Configure Python test client/server to use shared test keys and CA for SSL.
Remove Python SSL entries from known failures to re-enable SSL coverage.
diff --git a/lib/py/src/server/THttpServer.py b/lib/py/src/server/THttpServer.py
index 21f2c86..dc744e2 100644
--- a/lib/py/src/server/THttpServer.py
+++ b/lib/py/src/server/THttpServer.py
@@ -117,10 +117,18 @@
         self.httpd = server_class(server_address, RequestHander)
 
         if (kwargs.get('cafile') or kwargs.get('cert_file') or kwargs.get('key_file')):
-            context = ssl.create_default_context(cafile=kwargs.get('cafile'))
-            context.check_hostname = False
+            if hasattr(ssl, 'PROTOCOL_TLS_SERVER'):
+                context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
+            else:
+                context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
+            cafile = kwargs.get('cafile')
+            if cafile:
+                context.load_verify_locations(cafile=cafile)
+                context.verify_mode = ssl.CERT_REQUIRED
+            else:
+                context.verify_mode = ssl.CERT_NONE
             context.load_cert_chain(kwargs.get('cert_file'), kwargs.get('key_file'))
-            context.verify_mode = ssl.CERT_REQUIRED if kwargs.get('cafile') else ssl.CERT_NONE
+            context.check_hostname = False
             self.httpd.socket = context.wrap_socket(self.httpd.socket, server_side=True)
 
     def serve(self):