meta-hub

Results 3 issues of meta-hub

Added the `MySQL.getConfig` method, allowing us to retrieve the current server_config object. More convenient then having to parse the `mysql_connection_string` convar ourselves, and avoids any conflicts if the convar is...

Added `setHideState`, `getHideState` functions, with events and exports for each. Example usage: ```lua local chat = exports['chat'] local prevState = chat:getHideState() chat:setHideState('ALWAYS_HIDE') Wait(3000) chat:setHideState(prevState) ```

Added documentation for `loadscreen_manual_shutdown` flag.