Barrage board game enhancements + Nile Affair Expansion update

Edit 27. 9. 2023: I've bought Nile Affair Expansion and updated slade_the_dragon's insert for it:

1. New resources box which also stores 24 Irrigation and 5 Irrigation Scoring tiles.
2. Adjusted Preparing box where you can put new Bonus, Objective, Private Building - Pump Station and 8 Headstream tiles.
3. New Private Contract and External Work tiles fit into original boxes.

Everything still fits to the original box even with the new map.

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I have printed slade_the_dragon's insert for Barrage (https://www.thingiverse.com/thing:4865959) and add some customizations:

1. Cover for resources (for possible vertical storage)
2. Cover for water drops (for possible vertical storage)
3. Custom wheel arms. I did not like any existing because I'm used to rotate the wheel by end of arms
4. Cover for special tiles (for possible vertical storage) - added 12. 4. 2023 

Water drops are designed by JMPlus (https://www.thingiverse.com/thing:3819024), printed in vase mode with Fillamentum PLA Crystal Clear Iceland Blue filament.

See description