GRA-1298: License check changes, free tier limits for saas (#2418)

* set free tier limits through config

* add host limit to config

* check for host limit on free tier

* fix license validation, replace node limit with hosts

* add hosts to telemetry data

* debug init

* validate license every 1hr

* hook manager, api to fetch server usage

* hook manager, server usage api

* encode json server usage api

* update ngork url

* update license validation endpoint

* avoid setting limits on eer

* adding hotfix

* correct users limits env var

* add comments to exported funcs

---------

Co-authored-by: afeiszli <alex.feiszli@gmail.com>

main.go

@@ -42,6 +42,9 @@ func main() {
 	initialize()                       // initial db and acls
 	setGarbageCollection()
 	setVerbosity()
+	if servercfg.DeployedByOperator() && !servercfg.Is_EE {
+		logic.SetFreeTierLimits()
+	}
 	defer database.CloseDB()
 	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGTERM, os.Interrupt)
 	defer stop()
@@ -89,7 +92,6 @@ func initialize() { // Client Mode Prereq Check
 	if err != nil {
 		logger.Log(1, "Timer error occurred: ", err.Error())
 	}
-
 	logic.EnterpriseCheck()
 
 	var authProvider = auth.InitializeAuthProvider()
@@ -150,6 +152,9 @@ func startControllers(wg *sync.WaitGroup, ctx context.Context) {
 	// starts the stun server
 	wg.Add(1)
 	go stunserver.Start(wg, ctx)
+
+	wg.Add(1)
+	go logic.StartHookManager(ctx, wg)
 }
 
 // Should we be using a context vice a waitgroup????????????