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/thumbnail/thumbnail_example_test.go

@@ -0,0 +1,51 @@
+package thumbnail_test
+
+import (
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"image/jpeg"
+	"image/png"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram/thumbnail"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+func ExampleExpand() {
+	userPhoto := tg.UserProfilePhoto{
+		StrippedThumb: []uint8{
+			0x01, 0x28, 0x28, 0x29, 0x40, 0x1d, 0xff, 0x00, 0x2a, 0x41, 0x8e, 0xe3, 0x22, 0xac, 0x42, 0x51,
+			0xa0, 0x28, 0x03, 0x19, 0x1b, 0x9e, 0x07, 0x3f, 0xad, 0x69, 0x51, 0xbd, 0x91, 0xcf, 0x42, 0x29,
+			0xea, 0xc8, 0x9a, 0x36, 0x0a, 0x1b, 0x6e, 0x01, 0xe0, 0x73, 0xd6, 0x99, 0xdf, 0xbf, 0xe2, 0x2a,
+			0xdc, 0x71, 0xc8, 0xca, 0x11, 0x9d, 0x0e, 0xc3, 0xd7, 0x6f, 0x4f, 0xa5, 0x47, 0x2d, 0xb3, 0x2c,
+			0x84, 0x20, 0x38, 0xec, 0x71, 0xd6, 0xa6, 0x12, 0xb3, 0xd4, 0xd2, 0xac, 0x14, 0x96, 0x8b, 0x52,
+			0x0a, 0x2a, 0xc4, 0xb6, 0xa6, 0x38, 0x8b, 0x97, 0x04, 0x8e, 0xd8, 0xa2, 0xb6, 0x4d, 0x33, 0x95,
+			0xc5, 0xad, 0x1a, 0x1b, 0x04, 0xcb, 0x11, 0xf9, 0xd0, 0x11, 0xeb, 0x8e, 0x45, 0x58, 0x8e, 0x68,
+			0x93, 0x73, 0x96, 0x03, 0x79, 0xce, 0xd1, 0x55, 0x63, 0x50, 0x54, 0xb3, 0x64, 0xe3, 0xf0, 0x1f,
+			0x89, 0xa4, 0x75, 0x20, 0xee, 0xe3, 0x6f, 0x6e, 0xd9, 0xa9, 0x71, 0x4d, 0x9a, 0x46, 0x72, 0x8a,
+			0x2e, 0x79, 0xf2, 0x4a, 0x71, 0x02, 0x60, 0x7f, 0x79, 0xaa, 0x54, 0x46, 0x51, 0x97, 0x72, 0xcc,
+			0x7f, 0x2a, 0x20, 0x74, 0x78, 0xc1, 0x40, 0x00, 0xf4, 0xf4, 0xa7, 0xb3, 0x05, 0x52, 0xc7, 0xa0,
+			0xac, 0x9f, 0x63, 0x78, 0xae, 0xad, 0x94, 0xaf, 0xa4, 0xcb, 0x08, 0xc7, 0x41, 0xc9, 0xa2, 0xab,
+			0xc8, 0xe6, 0x47, 0x66, 0x3d, 0xcd, 0x15, 0xbc, 0x55, 0x91, 0xc9, 0x39, 0x73, 0x3b, 0x88, 0x09,
+			0x18, 0xf6, 0xe7, 0x14, 0x8c, 0xc5, 0x8e, 0x58, 0xe4, 0xd1, 0x45, 0x32, 0x6e, 0x3e, 0x19, 0x5a,
+			0x27, 0xdc, 0x3a, 0x77, 0x1e, 0xb5, 0x62, 0xe2, 0xe5, 0x1e, 0x1d, 0xa9, 0xd4, 0xf5, 0xe3, 0xa5,
+			0x14, 0x52, 0x71, 0x4d, 0xdc, 0xa5, 0x36, 0x95, 0x8a, 0x74, 0x51, 0x45, 0x32, 0x4f,
+		},
+	}
+
+	result, err := thumbnail.Expand(userPhoto.StrippedThumb)
+	if err != nil {
+		panic(err)
+	}
+
+	img, err := jpeg.Decode(bytes.NewReader(result))
+	if err != nil {
+		panic(err)
+	}
+
+	var buf bytes.Buffer
+	if err := png.Encode(&buf, img); err != nil {
+		panic(err)
+	}
+	fmt.Println("IMAGE:" + base64.StdEncoding.EncodeToString(buf.Bytes()))
+}