Port over to bevy v0.15

[adrien-bon]

Port over to bevy v0.15

Migration guide: https://bevyengine.org/learn/migration-guides/0-14-to-0-15/

Port status

• build with default features
• build with physics + tiled + avian features
• build with user_properties feature
• update examples
• take advantage of required components to rework public types
• fix rendering
• figure out what to do for TypeInfo::Set and ReflectMut::Set

Dependencies

Name	Status	PR / Branch
bevy	0.15	✅
bevy_ecs_tilemap	On-going PR	StarArawn/bevy_ecs_tilemap#568 / StarArawn/bevy_ecs_tilemap#574
bevy_rapier2d	0.28	✅
avian_2d	Merged in main	https://github.com/Jondolf/avian/commits/main/
bevy_inspector_egui	0.28	✅

[adrien-bon]

Waiting for remaining dependencies to be merged / released