move gotd fork into repo. (#111)

- update to latest telegram layer
- remove some references to fields in tg.Entities that don't exist in
the schema
- originally added here:
https://github.com/beeper/td/commit/820929062a2ba0104397bc01235ab58a9cff780e
  - referenced here
-
https://github.com/mautrix/telegramgo/commit/124f0967ed195b5a380c9bd02e170ada9710dde3
-
https://github.com/mautrix/telegramgo/commit/4205047aab2e0639217148b5d125bfaab668bd8e

pkg/gotd/telegram/peers/search_test.go

@@ -0,0 +1,45 @@
+package peers
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+func TestManager_Search(t *testing.T) {
+	a := require.New(t)
+	ctx := context.Background()
+	mock, m := testManager(t)
+
+	mock.ExpectCall(&tg.ContactsSearchRequest{
+		Q:     "q",
+		Limit: 10,
+	}).ThenRPCErr(getTestError())
+	_, err := m.Search(ctx, "q")
+	a.Error(err)
+
+	mock.ExpectCall(&tg.ContactsSearchRequest{
+		Q:     "q",
+		Limit: 10,
+	}).ThenResult(&tg.ContactsFound{
+		MyResults: []tg.PeerClass{&tg.PeerUser{UserID: getTestUser().GetID()}},
+		Results:   []tg.PeerClass{&tg.PeerChat{ChatID: getTestChat().GetID()}},
+		Chats: []tg.ChatClass{
+			getTestChat(),
+		},
+		Users: []tg.UserClass{
+			getTestUser(),
+		},
+	})
+	r, err := m.Search(ctx, "q")
+	a.NoError(err)
+
+	a.Len(r.MyResults, 1)
+	a.Equal(getTestUser().GetID(), r.MyResults[0].ID())
+
+	a.Len(r.Results, 1)
+	a.Equal(getTestChat().GetID(), r.Results[0].ID())
+}