v1.2.3 - Older LXL versions compatible and automatic check update

1. add old version LXL compatible, minimum compatible LXL version 0.5.3
2. add automatic check for updates using MineBBS API, which can be closed in the configuration file
3. fix the bug that the screen may can't be opened

Compatible with LiteLoader 2.1.6

if you update LiteLoader by auto upgrade or /ll upgrade command, you can

1. update FakePlayerManager to this release
2. update LiteLoader manually (full coverage update)

v1.2.0

1. fix the problem that the button of Add fake player in the list screen is invalid
2. fix cannot be started if OperationAgent plugin is not installed
3. fix the missing translation text
4. Slightly reduce the efficiency of debug mode to increase the efficiency of non-debug mode
5. Reduce the redundant data synchronization to reduce the dummy screen delay
6. export some APIs, see: FpmApiTemplate.js
7. add asynchronous Websocket connection support, (LiteLoader 2.0.4 or above is automatically enabled, other versions are not affected)