Upgrading dependency to Thrift 0.12.0

vendor/git.apache.org/thrift.git/tutorial/shared.thrift

@@ -22,6 +22,7 @@
  * these definitions.
  */
 
+namespace cl shared
 namespace cpp shared
 namespace d share // "shared" would collide with the eponymous D keyword.
 namespace dart shared
@@ -29,6 +30,7 @@ namespace java shared
 namespace perl shared
 namespace php shared
 namespace haxe shared
+namespace netcore shared
 
 struct SharedStruct {
   1: i32 key