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/markup/hide.go

@@ -0,0 +1,23 @@
+package markup
+
+import "go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+
+// Hide creates markup to hide markup.
+func Hide() tg.ReplyMarkupClass {
+	return &tg.ReplyKeyboardHide{}
+}
+
+// SelectiveHide creates markup to hide markup.
+// Use this builder if you want to remove the keyboard for specific users only.
+// Targets:
+//  1. users that are @mentioned in the text of the Message object;
+//  2. if the bot's message is a reply (has reply_to_message_id), sender of the original message.
+//
+// Example: A user votes in a poll, bot returns confirmation message in reply to the vote
+// and removes the keyboard for that user, while still showing the keyboard with poll
+// options to users who haven't voted yet.
+func SelectiveHide() tg.ReplyMarkupClass {
+	return &tg.ReplyKeyboardHide{
+		Selective: true,
+	}
+}