Merge pull request #179 in DNS/adguard-dns from feature/637 to master

* commit 'bc0b0af06b71197d75c8a7f8c3a401d4c8a49d61':
  + client: added name for client
  - openapi: fix typo
  + control: /clients: get the list of clients' IP addresses and names from /etc/hosts

control.go

@@ -1136,6 +1136,7 @@ func registerControlHandlers() {
 	http.HandleFunc("/control/dhcp/find_active_dhcp", postInstall(optionalAuth(ensurePOST(handleDHCPFindActiveServer))))
 
 	RegisterTLSHandlers()
+	RegisterClientsHandlers()
 
 	http.HandleFunc("/dns-query", postInstall(handleDOH))
 }