Release 0.2.10

Mechanized Assault & eXploration Reloaded 0.2.10 (March, 2023)

-changed shortcut to toggle debug frames from CTRL+w to CTRL+ALT+w to reduce likelihood of enabling it by accident.
-update path to bugtracker, fixes #1098
-fixed #1006: write saved map positions (Alt + F5-8) to savegame file
-refactoring client/server model (now all clients have full knowledge)
-fixed cost calculation of pre game speed upgrades
-fixed speed of submarines under bridges ; #1113
-multiplayer games can be resumed without defeated players. Fixed #1032
-requires C++14 compilers
-allow to save game from dedicated server
-maj of all French translations.
-use new clan logo images
-migrated from Xml to Json
-migrated from Xml translation to gettext format (.po) using spiritless_po (so no .mo)
-improve dedicatedserver support to simplify configuration from (pseudo) host
-add alien support.