THRIFT-4723 Consolidate C#/netcore into new netstd language target
Client: netstd
Patch: Jens Geyer

This closes #1710
diff --git a/test/ThriftTest.thrift b/test/ThriftTest.thrift
index e025b7f..d1e6b5e 100644
--- a/test/ThriftTest.thrift
+++ b/test/ThriftTest.thrift
@@ -30,6 +30,7 @@
 namespace js ThriftTest
 namespace lua ThriftTest
 namespace netcore ThriftTest
+namespace netstd ThriftTest
 namespace perl ThriftTest
 namespace php ThriftTest
 namespace py ThriftTest