Add interface layer (#23)

* implement grpc interface

* rework GetEventStream rpc

* implement Ping & GetEventStream

* remove dev_portal

* Compile protos

* Empty gitignore

---------

Co-authored-by: altafan <18440657+altafan@users.noreply.github.com>

asp/internal/interface/grpc/service.go

@@ -1,22 +0,0 @@
-package grpc_interface
-
-import (
-	log "github.com/sirupsen/logrus"
-)
-
-// TODO: Edit this file to something more meaningful for your application.
-type service struct {}
-
-func NewService() (*service, error) {
-	return &service{}, nil
-}
-
-func (s *service) Start() error {
-	log.Debug("service is listening")
-	return nil
-}
-
-func (s *service) Stop() {
-	log.Debug("service stopped")
-}
-