Command to efficiently drop matched archetypes and their tables

## What problem does this solve or what need does it fill?

Currently there is no way to clear all entities from an archetype/table efficiently. Each entity has to be despawned individually. This is not ideal ergonomically but also much slower than it could be performance wise.

```rs
fn sys(mut cmds: Commands, to_clear: Query, With)>) {
for entity in to_clear.iter() {
cmds.entity(entity).despawn();
}
}
```

## What solution would you like?

A command that efficiently drops anything that matches a query.
```rs
fn sys(mut cmds: Commands) {
cmds.add(Clear::new::<(With, With)>());
}
```
## What alternative(s) have you considered?

Using my own storage in a resource but this loses all the benefits of the ECS.

## Additional context

Change detection will have to be ignored. At least until [archetype level change detection](https://github.com/bevyengine/bevy/issues/5097) is a thing.