Allows saving and restoring multiple personal logistics layouts. Tested with 0.18.13-style unlimited personal logistics, not tested with old-style personal logistics slots.

Supports:
- Saving and restoring your player's personal logistics layout (item types, amounts, and position in the layout grid)
- Naming different layouts
- Deleting saved layouts
- Renaming a saved layout
- A quick shortcut to clear your whole logistic layout in one click
- Restoring a layout with items that no longer exist (e.g. when a mod is removed)

Doesn't support:
- Previewing a saved layout
- Multiplayer (or the layouts will be shared, not sure, I don't play multiplayer)

This mod works but is still a bit WIP, if it gets in a weird state run the following to fix it, but it will clear all layouts:
/c remote.call('bluegistics', 'clear_layouts')