Relase 0.10.0 for Linux !

Hello fellow Linuxians,

It was time I released a new Linux version. The v0.10.0 is ready ! It works an Ubuntu 22.04, but tell me if it works well on your system.

Changelog contains (major changes only):

• Changed ... again ... battlefield representation. I try a more 'realistic' style now.
• Reworked attack and defence regiments behaviours, in order to avoid situations when units are blocked (it happens yet, I will continue working on it).
• When zoomed out, battalions (units) are displayed as tokens (like on a Kriegsspiel board), when zoomed in, units are displayed as soldiers.
• Some tree tiles are displayed as realistic trees when zoomed in (must apply this to all tree tiles, after more performance tests).
• Battalions are divided into platoons and soldiers for the sake of display (but it is only graphical, platoons are not managed by game engine).
• Rotation of battalions take time now. This is coherent with the fact that when zoomed in , lines of soldiers take time to rotate.
• Optimized terrain 3D display (thanks to renderdoc !!!!) .
• Fog of war appears like a fog now. It lacks pretty borders but is better than the previous displaying of hidden land (hidden land was greyed out, visible land was lighted).

Yep, campaign does not integrate artillery now, it will be for a future update. If you want to know everything, the long range of artillery  will impact infantry attack and defence behaviour. I must develop it carefully in order to keep units able to fight without orders from general.