[management] Add structs for new networks concept (#3006)

management/server/networks/network.go

@@ -0,0 +1,19 @@
+package networks
+
+import "github.com/rs/xid"
+
+type Network struct {
+	ID          string `gorm:"index"`
+	AccountID   string `gorm:"index"`
+	Name        string
+	Description string
+}
+
+func NewNetwork(accountId, name, description string) *Network {
+	return &Network{
+		ID:          xid.New().String(),
+		AccountID:   accountId,
+		Name:        name,
+		Description: description,
+	}
+}