Add gitservers to backend

backend/app/repository/gitserver_repository.go

@@ -0,0 +1,16 @@
+package repository
+
+import (
+	"errors"
+	"quay/app/models"
+)
+
+var ErrGitServerAlreadyExists = errors.New("gitserver already exists")
+
+type GitServerRepository interface {
+	ListGitServers() ([]models.GitServer, error)
+	GetGitServer(id string) (*models.GitServer, error)
+	CreateGitServer(gs *models.GitServer) error
+	UpdateGitServer(gs *models.GitServer) error
+	DeleteGitServer(id string) error
+}