add(taskwarrior): pull implementation for new tasks

This implements the pull functionality for new tasks, which are not yet
in the local taskwarrior instance created. WIP for #3.

internal/gitea/milestone.go

@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"net/http"
 	"time"
+
+	"gitea.yves-biener.de/yves-biener/gitwarrior/internal/taskwarrior"
 )
 
 type Milestone struct {
@@ -21,6 +23,11 @@ type Milestone struct {
 	Closed_at     time.Time `json:"closed_at"`
 }
 
+// TODO: implement merge for milestone tasks
+func (milestone *Milestone) Merge(task taskwarrior.Task) taskwarrior.Task {
+	return task
+}
+
 func (gitea *Gitea) GetMilestones(repo Repository) ([]Milestone, error) {
 	url := fmt.Sprintf("%s/repos/%s/milestones?state=all", gitea.Url(), repo.Full_name)
 	response, err := http.Get(url)