* Player model: Remove vertical 1 node offset for new engines, but
Required due to the settable player collision box engine feature
change for MT/MTG v0.5.0 that breaks compatibility with old client
so due that this commit will added backguard compatibility
* Autodetec minetest versoin engine and provide right model
character, update player code to provide compatibility with player_api
* try to adapt due commit 66372e75d9
so provide alternate usage when up to date engines are detected
give then `is_area_protected` if any modern engine is availabe,
otherwise use `intersects_protection` if availabe.. or default one
* more info https://codeberg.org/minenux/minetest-engine-minetest/issues/32