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/apply_test.go

@@ -0,0 +1,46 @@
+package peers
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+func TestManager_applyChats(t *testing.T) {
+	ctx := context.Background()
+	a := require.New(t)
+	_, m := testManager(t)
+
+	chats := []tg.ChatClass{
+		&tg.ChatEmpty{ID: 1},
+		&tg.Chat{ID: 2},
+		&tg.ChatForbidden{ID: 3},
+		&tg.Channel{ID: 4, AccessHash: 14},
+		&tg.ChannelForbidden{ID: 5, AccessHash: 15},
+	}
+
+	// Ensure nil safety.
+	a.NoError(m.applyChats(ctx, nil, nil, nil))
+	a.NoError(m.applyChats(ctx, chats...))
+
+	_, ok, err := m.storage.Find(ctx, Key{ID: 2, Prefix: chatsPrefix})
+	a.NoError(err)
+	a.True(ok)
+
+	_, ok, err = m.storage.Find(ctx, Key{ID: 3, Prefix: chatsPrefix})
+	a.NoError(err)
+	a.True(ok)
+
+	v, ok, err := m.storage.Find(ctx, Key{ID: 4, Prefix: channelPrefix})
+	a.NoError(err)
+	a.True(ok)
+	a.Equal(int64(14), v.AccessHash)
+
+	v, ok, err = m.storage.Find(ctx, Key{ID: 5, Prefix: channelPrefix})
+	a.NoError(err)
+	a.True(ok)
+	a.Equal(int64(15), v.AccessHash)
+}