flecs_ecs 0.2.0

Rust API for the C/CPP flecs ECS library <https://github.com/SanderMertens/flecs>
mod entity_type;
mod member_ranges;
mod reflection_basics;
mod reflection_basics_bitmask;
mod reflection_basics_deserialize;
mod reflection_basics_json;
mod reflection_basics_simple_enum;
mod reflection_nested_set_member;
mod reflection_nested_struct;
mod reflection_query_to_custom_json;
mod reflection_query_to_json;
mod reflection_runtime_component;
mod reflection_runtime_nested_component;
mod reflection_ser_opaque_type;
mod reflection_ser_std_string;
mod reflection_ser_std_vector_builtin_types;
mod reflection_ser_std_vector_custom_types;

mod reflection_world_ser_deser;

//TODO custom_serialzer example + ser_std_optional