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/inline/option.go

@@ -0,0 +1,46 @@
+package inline
+
+import (
+	"io"
+	"strconv"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/crypto"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+type resultPageBuilder struct {
+	results []tg.InputBotInlineResultClass
+	random  io.Reader
+}
+
+func (r *resultPageBuilder) generateID() (string, error) {
+	n, err := crypto.RandInt64(r.random)
+	if err != nil {
+		return "", err
+	}
+
+	return strconv.FormatInt(n, 10), nil
+}
+
+// ResultOption is an option of inline result.
+type ResultOption interface {
+	apply(r *resultPageBuilder) error
+}
+
+// MessageOption is an option of inline result message.
+type MessageOption interface {
+	apply() (tg.InputBotInlineMessageClass, error)
+}
+
+type messageOptionFunc func() (tg.InputBotInlineMessageClass, error)
+
+func (m messageOptionFunc) apply() (tg.InputBotInlineMessageClass, error) {
+	return m()
+}
+
+// ResultMessage creates new MessageOption from given message object.
+func ResultMessage(r tg.InputBotInlineMessageClass) MessageOption {
+	return messageOptionFunc(func() (tg.InputBotInlineMessageClass, error) {
+		return r, nil
+	})
+}