Initial migration of the store to be sync (#10592)

* Migrating audit store

* Final migration example for the audit store

* async example

* Ending migration

* Removing Async helper

* Fixing tests

* Fixing govet problems with the StoreResult instanstiation

api4/apitestlib.go

@@ -733,8 +733,7 @@ func (me *TestHelper) cleanupTestFile(info *model.FileInfo) error {
 func (me *TestHelper) MakeUserChannelAdmin(user *model.User, channel *model.Channel) {
 	utils.DisableDebugLogForTest()
 
-	if cmr := <-me.App.Srv.Store.Channel().GetMember(channel.Id, user.Id); cmr.Err == nil {
-		cm := cmr.Data.(*model.ChannelMember)
+	if cm, err := me.App.Srv.Store.Channel().GetMember(channel.Id, user.Id); err == nil {
 		cm.SchemeAdmin = true
 		if sr := <-me.App.Srv.Store.Channel().UpdateMember(cm); sr.Err != nil {
 			utils.EnableDebugLogForTest()
@@ -742,7 +741,7 @@ func (me *TestHelper) MakeUserChannelAdmin(user *model.User, channel *model.Chan
 		}
 	} else {
 		utils.EnableDebugLogForTest()
-		panic(cmr.Err)
+		panic(err)
 	}
 
 	utils.EnableDebugLogForTest()