Add change log.

GitOrigin-RevId: bbffbec7d281254a1fd430064e3cfe620df87c0a

CHANGELOG.md

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+Changes in 1.1.0:
+
+* Methods `td::Log::set_file_path` and `td_set_log_file_path` now return whether they succeeded.
+* Added methods `td::Log::set_max_file_size` and `td_set_log_max_file_size` for restricting maximum TDLib log size.
+* Added methods `td::Log::set_fatal_error_callback` and `td_set_log_fatal_error_callback` for providing callbacks
+  on fatal errors.
+* JNI-bindings are now package-agnostic. Use CMake option `TD_ENABLE_JNI` to enable JNI-bindings.
+* Added a Java example. See [Readme](example/java/README.md) for build and usage instructions.
+* Added support for text entities in media captions.
+  - Added new type `formattedText` containing a text with entities.
+  - Replaced all string fields `caption` with fields of type `formattedText`.
+  - Replaced fields `text` and `entities` with the field `text` of type `formattedText` in class `messageText`.
+  - Replaced fields `text` and `entities` with the field `text` of type `formattedText` in class `inputMessageText`.
+  - Replaced fields `text` and `text_entities` with the field `text` of type `formattedText` in class `game`.
+  - Removed field `parse_mode` from class `inputMessageText`.
+  - Added synchronous method `parseTextEntities`.
+* updateNewMessage is now sent for all sent messages. 
+* updateChatLastMessage is now sent when any field of the last message in a chat changes.
+* Reworked the `registerDevice` method:
+  - Added parameter `other_user_ids` to method `registerDevice` to support multiple accounts.
+  - It is now possible to specify tokens for VoIP pushes, WNS, web Push API, Tizen Push Service as `DeviceToken`.
+  - Added support for Apple Push Notification Service inside App Sandbox.
+* Add method `searchChatsOnServer` analogous to `searchChats`, but using server search.
+* Results from the `searchChatsOnServer` method are now excluded from `searchPublicChats` results,
+  so `searchChatsOnServer` (along with `searchContacts`) should be called whenever `searchPublicChats` is called
+  to ensure that no results were omitted.
+* Added parameter `as_album` to method `getPublicMessageLink` to enable getting public links for media albums.
+* Added field `html` to class `publicMessageLink`, containing HTML-code for message/message album embedding.
+* Added parameter `only_if_pending` to method `cancelDownloadFile` to allow keeping already started downloads.
+* Methods `createPrivateChat`, `createBasciGroupChat`, `createSupergroupChat` and `createSecretChat`
+  can now be called without a prior call to `getUser`/`getBasicGroup`/`getSupergorup`/`getSecretChat`.
+* Added parameter `force` to methods `createPrivateChat`, `createBasciGroupChat` and `createSupergroupChat` to allow
+  creating a chat without network requests.
+* Numerous optimizations and bug fixes.
+
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