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/auth/password_example_test.go

@@ -0,0 +1,62 @@
+package auth_test
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/go-faster/errors"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram/auth"
+)
+
+func ExampleClient_UpdatePassword() {
+	ctx := context.Background()
+	client := telegram.NewClient(telegram.TestAppID, telegram.TestAppHash, telegram.Options{})
+	if err := client.Run(ctx, func(ctx context.Context) error {
+		// Updating password.
+		if err := client.Auth().UpdatePassword(ctx, "new_password", auth.UpdatePasswordOptions{
+			// Hint sets new password hint.
+			Hint: "new password hint",
+			// Password will be called if old password is requested by Telegram.
+			//
+			// If password was requested and Password is nil, auth.ErrPasswordNotProvided error will be returned.
+			Password: func(ctx context.Context) (string, error) {
+				return "old_password", nil
+			},
+		}); err != nil {
+			return err
+		}
+
+		return nil
+	}); err != nil {
+		panic(err)
+	}
+}
+
+func ExampleClient_ResetPassword() {
+	ctx := context.Background()
+	client := telegram.NewClient(telegram.TestAppID, telegram.TestAppHash, telegram.Options{})
+	if err := client.Run(ctx, func(ctx context.Context) error {
+		wait, err := client.Auth().ResetPassword(ctx)
+		var waitErr *auth.ResetFailedWaitError
+		switch {
+		case errors.As(err, &waitErr):
+			// Telegram requested wait until making new reset request.
+			fmt.Printf("Wait until %s to reset password.\n", wait.String())
+		case err != nil:
+			return err
+		}
+
+		// If returned time is zero, password was successfully reset.
+		if wait.IsZero() {
+			fmt.Println("Password was reset.")
+			return nil
+		}
+
+		fmt.Printf("Password will be reset on %s.\n", wait.String())
+		return nil
+	}); err != nil {
+		panic(err)
+	}
+}