change refcount, avoid ShmMsgQueue AddRef on send.

lichao

2021-05-14 c0d61292ef6bdd8e2e93525b5df6a8ec5c017c32

 .gitignore

@@ -9,4 +9,5 @@
*/bhshmq_center
*/help
*/bhshmqbox
*/bhshmq_status
*/bhshmq_status
.idea