#8 implement interface Source and methods for gitea without Update (#9)

Прикинул метод Open и Delete, Update пока не до делал.

Co-authored-by: Gorbunov Kirill Andreevich <kgorbunov@mtsbank.ru>
Reviewed-on: #9
Co-authored-by: Кирилл Горбунов <kirya_gorbunov_2015@mail.ru>
Co-committed-by: Кирилл Горбунов <kirya_gorbunov_2015@mail.ru>

internal/source/github/github.go

@@ -0,0 +1,31 @@
+package github
+
+import (
+	"context"
+
+	"git.unistack.org/unistack-org/pkgdash/internal/configcli"
+	"git.unistack.org/unistack-org/pkgdash/internal/modules"
+)
+
+type Github struct {
+	Token string
+}
+
+func NewGithub(cfg configcli.Config) *Github {
+	return &Github{
+		Token: cfg.Source.Token,
+	}
+}
+
+func (g *Github) RequestOpen(ctx context.Context, branch string, path string, mod modules.Update) error {
+	return nil
+}
+func (g *Github) RequestClose(ctx context.Context, branch string, path string) error {
+	return nil
+}
+func (g *Github) RequestUpdate(ctx context.Context, branch string, path string, mod modules.Update) error {
+	return nil
+}
+func (g *Github) RequestList(ctx context.Context, branch string) (map[string]string, error) {
+	return nil, nil
+}