Packet cleanup

[kirderf1]

Performs a variety of changes to clean up packets and code surrounding packets:

• Split multi-purpose packets into multiple different packets
• Pluralize class names for classes containing multiple packets
• Move ModusDataPacket and DataCheckerPermissionPacket inside related existing classes
• Renamed some packets to more informative names
• Convert packet classes to records
• New packages block for block interaction packets and editmode for editmode packets
• Packets from block screens now check creative mode and creative shock to match checks when opening the corresponding screen
• Convert packet classes to records
• Cleaned up some fields and buffer serialization in packets
• Introduce helper function MSPacket.getAccessibleBlockEntity() for accessing block entities from packets in a consistent manner
• Block settings packets are now handled more in the respective block entities instead of the packet itself
• Added some missing calls to blockEntity.setChanged() and marking the block entity to be synced to client