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/qrlogin/token_test.go

@@ -0,0 +1,52 @@
+package qrlogin
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestParseTokenURL(t *testing.T) {
+	tests := []struct {
+		name    string
+		u       string
+		want    Token
+		wantErr bool
+	}{
+		{
+			"Valid",
+			"tg://login?token=AQL0cY5hVg_D1OqESdYnJVg5845qbd8FiOLpUUeyvcb28g==",
+			Token{
+				token: []uint8{
+					0x1, 0x2, 0xf4, 0x71, 0x8e, 0x61,
+					0x56, 0xf, 0xc3, 0xd4, 0xea, 0x84,
+					0x49, 0xd6, 0x27, 0x25, 0x58, 0x39,
+					0xf3, 0x8e, 0x6a, 0x6d, 0xdf, 0x5,
+					0x88, 0xe2, 0xe9, 0x51, 0x47, 0xb2,
+					0xbd, 0xc6, 0xf6, 0xf2,
+				},
+				expires: time.Unix(0, 0),
+			},
+			false,
+		},
+		{"InvalidSchema", "vk://login", Token{}, true},
+		{"InvalidPath", "tg://aboba", Token{}, true},
+		{"NoToken", "tg://login", Token{}, true},
+		{"InvalidBase64", "tg://login?token=A", Token{}, true},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			a := require.New(t)
+
+			got, err := ParseTokenURL(tt.u)
+			if tt.wantErr {
+				a.Error(err)
+			} else {
+				a.Equal(tt.want, got)
+				a.NoError(err)
+				a.Equal(tt.want.URL(), tt.u)
+			}
+		})
+	}
+}