Add jobs for server synchronisation

[TimoWolters]

Based on the task scheduler of #18 a job for server synchronisation is needed. The server synchronisation should upload save states to the LotsenApp server if a user is authenticated at a server. This should create participants on the server side and synchronize changes such as deletion.

A second job should handle changes to the data format on server side. The server side dictates the data format such that distribution of updates are possible. This way a user will be able to upload changes to the data format and those changes will eventually be reflected in all authenticated client applications.

A third job should handle data processing of data packages after the data processing has been implemented. This job may be implemented, but since data processing is not specified, the implementation should wait until at least the 2.4.0 update.

• Backup Synchronization Job
• Data Format Synchronization Job
• Data Processing Job