feat: base grpc system and base use

internal/hub/grpc/server.go

@@ -0,0 +1,19 @@
+package grpc
+
+import (
+	"context"
+	"log"
+
+	"github.com/lorsanstand/HomeOps-Hub/api/gen/homeops"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+type Server struct {
+	homeops.UnimplementedHubServer
+}
+
+func (s *Server) Ping(ctx context.Context, _ *emptypb.Empty) (*homeops.PongResponse, error) {
+	log.Println("Answer")
+	return &homeops.PongResponse{Pong: "Huiiii"}, nil
+
+}