v0.2.0

• Adds support for archetypes with Vec-like dynamic storage capacity. This can be used by setting the keyword dyn as the capacity value in the ecs_archetype! declaration. Worlds generated by ecs_world! now have a with_capacity function with arguments for each dynamic archetype to pre-allocate storage.
  • Fixed-capacity archetypes won't have arguments in with_capacity -- they are always allocated to their full fixed capacity on world creation.
• Adds an Entity<_> pseudo-parameter to queries. This will match any archetype like EntityAny, but will yield a typed Entity<A> for the currently-matched archetype in the query body.
• Adds a new 32_components crate feature to go up to 32 maximum components in a single archetype. Enabling this feature may impact compile times.