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/message/style_example_test.go

@@ -0,0 +1,58 @@
+package message_test
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram/message"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram/message/styling"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+func sendStyledText(ctx context.Context) error {
+	client, err := telegram.ClientFromEnvironment(telegram.Options{})
+	if err != nil {
+		return err
+	}
+
+	// This example creates a big message with different style lines
+	// and sends to your Saved Messages folder.
+	return client.Run(ctx, func(ctx context.Context) error {
+		formats := []message.StyledTextOption{
+			styling.Plain("plaintext"), styling.Plain("\n\n"),
+			styling.Mention("@durov"), styling.Plain("\n\n"),
+			styling.Hashtag("#hashtag"), styling.Plain("\n\n"),
+			styling.BotCommand("/command"), styling.Plain("\n\n"),
+			styling.URL("https://google.org"), styling.Plain("\n\n"),
+			styling.Email("example@example.org"), styling.Plain("\n\n"),
+			styling.Bold("bold"), styling.Plain("\n\n"),
+			styling.Italic("italic"), styling.Plain("\n\n"),
+			styling.Underline("underline"), styling.Plain("\n\n"),
+			styling.Strike("strike"), styling.Plain("\n\n"),
+			styling.Code("fmt.Println(`Hello, World!`)"), styling.Plain("\n\n"),
+			styling.Pre("fmt.Println(`Hello, World!`)", "Go"), styling.Plain("\n\n"),
+			styling.TextURL("clickme", "https://google.com"), styling.Plain("\n\n"),
+			styling.Phone("+71234567891"), styling.Plain("\n\n"),
+			styling.Cashtag("$CASHTAG"), styling.Plain("\n\n"),
+			styling.Blockquote("blockquote", false), styling.Plain("\n\n"),
+			styling.BankCard("5550111111111111"), styling.Plain("\n\n"),
+		}
+
+		_, err := message.NewSender(tg.NewClient(client)).
+			Self().StyledText(ctx, formats...)
+		return err
+	})
+}
+
+func ExampleBuilder_StyledText() {
+	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt)
+	defer cancel()
+
+	if err := sendStyledText(ctx); err != nil {
+		_, _ = fmt.Fprintf(os.Stderr, "%+v\n", err)
+		os.Exit(2)
+	}
+}