Fix unstable parallel tests (#202)

* update interface tests and configuration messages

* little debug

* little debug on both errors

* print all devs

* list of devices

* debug func

* handle interface close

* debug socks

* debug socks

* if ports match

* use random assigned ports

* remove unused const

* close management client connection when stopping engine

* GracefulStop when management clients are closed

* enable workflows on PRs too

* remove iface_test debug code

.github/workflows/golang-test-windows.yml

@@ -1,5 +1,5 @@
 name: Test Code Windows
-on: push
+on: [push,pull_request]
 jobs:
   pre:
     runs-on: ubuntu-latest
@@ -47,5 +47,5 @@ jobs:
       - name: Install modules
         run: go mod tidy
 
-      - name: Test build
+      - name: Test
         run: go test -tags=load_wgnt_from_rsrc ./...