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/gen/example/tl_error_gen.go

@@ -0,0 +1,205 @@
+// Code generated by gotdgen, DO NOT EDIT.
+
+package td
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"sort"
+	"strings"
+
+	"go.uber.org/multierr"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/bin"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tdjson"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tdp"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tgerr"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = bin.Buffer{}
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = multierr.AppendInto
+	_ = sort.Ints
+	_ = tdp.Format
+	_ = tgerr.Error{}
+	_ = tdjson.Encoder{}
+)
+
+// Error represents TL type `error#14feebbc`.
+//
+// See https://localhost:80/doc/constructor/error for reference.
+type Error struct {
+	// Error code; subject to future changes. If the error code is 406, the error message
+	// must not be processed in any way and must not be displayed to the user
+	Code int32
+	// Error message; subject to future changes
+	Message string
+	// Temporary field of Error.
+	Temporary bool
+}
+
+// ErrorTypeID is TL type id of Error.
+const ErrorTypeID = 0x14feebbc
+
+// Ensuring interfaces in compile-time for Error.
+var (
+	_ bin.Encoder     = &Error{}
+	_ bin.Decoder     = &Error{}
+	_ bin.BareEncoder = &Error{}
+	_ bin.BareDecoder = &Error{}
+)
+
+func (e *Error) Zero() bool {
+	if e == nil {
+		return true
+	}
+	if !(e.Code == 0) {
+		return false
+	}
+	if !(e.Message == "") {
+		return false
+	}
+	if !(e.Temporary == false) {
+		return false
+	}
+
+	return true
+}
+
+// String implements fmt.Stringer.
+func (e *Error) String() string {
+	if e == nil {
+		return "Error(nil)"
+	}
+	type Alias Error
+	return fmt.Sprintf("Error%+v", Alias(*e))
+}
+
+// TypeID returns type id in TL schema.
+//
+// See https://core.telegram.org/mtproto/TL-tl#remarks.
+func (*Error) TypeID() uint32 {
+	return ErrorTypeID
+}
+
+// TypeName returns name of type in TL schema.
+func (*Error) TypeName() string {
+	return "error"
+}
+
+// TypeInfo returns info about TL type.
+func (e *Error) TypeInfo() tdp.Type {
+	typ := tdp.Type{
+		Name: "error",
+		ID:   ErrorTypeID,
+	}
+	if e == nil {
+		typ.Null = true
+		return typ
+	}
+	typ.Fields = []tdp.Field{
+		{
+			Name:       "Code",
+			SchemaName: "code",
+		},
+		{
+			Name:       "Message",
+			SchemaName: "message",
+		},
+		{
+			Name:       "Temporary",
+			SchemaName: "temporary",
+		},
+	}
+	return typ
+}
+
+// Encode implements bin.Encoder.
+func (e *Error) Encode(b *bin.Buffer) error {
+	if e == nil {
+		return fmt.Errorf("can't encode error#14feebbc as nil")
+	}
+	b.PutID(ErrorTypeID)
+	return e.EncodeBare(b)
+}
+
+// EncodeBare implements bin.BareEncoder.
+func (e *Error) EncodeBare(b *bin.Buffer) error {
+	if e == nil {
+		return fmt.Errorf("can't encode error#14feebbc as nil")
+	}
+	b.PutInt32(e.Code)
+	b.PutString(e.Message)
+	b.PutBool(e.Temporary)
+	return nil
+}
+
+// Decode implements bin.Decoder.
+func (e *Error) Decode(b *bin.Buffer) error {
+	if e == nil {
+		return fmt.Errorf("can't decode error#14feebbc to nil")
+	}
+	if err := b.ConsumeID(ErrorTypeID); err != nil {
+		return fmt.Errorf("unable to decode error#14feebbc: %w", err)
+	}
+	return e.DecodeBare(b)
+}
+
+// DecodeBare implements bin.BareDecoder.
+func (e *Error) DecodeBare(b *bin.Buffer) error {
+	if e == nil {
+		return fmt.Errorf("can't decode error#14feebbc to nil")
+	}
+	{
+		value, err := b.Int32()
+		if err != nil {
+			return fmt.Errorf("unable to decode error#14feebbc: field code: %w", err)
+		}
+		e.Code = value
+	}
+	{
+		value, err := b.String()
+		if err != nil {
+			return fmt.Errorf("unable to decode error#14feebbc: field message: %w", err)
+		}
+		e.Message = value
+	}
+	{
+		value, err := b.Bool()
+		if err != nil {
+			return fmt.Errorf("unable to decode error#14feebbc: field temporary: %w", err)
+		}
+		e.Temporary = value
+	}
+	return nil
+}
+
+// GetCode returns value of Code field.
+func (e *Error) GetCode() (value int32) {
+	if e == nil {
+		return
+	}
+	return e.Code
+}
+
+// GetMessage returns value of Message field.
+func (e *Error) GetMessage() (value string) {
+	if e == nil {
+		return
+	}
+	return e.Message
+}
+
+// GetTemporary returns value of Temporary field.
+func (e *Error) GetTemporary() (value bool) {
+	if e == nil {
+		return
+	}
+	return e.Temporary
+}